I cannot post in the Tutorial section but I thought this may be of use. I couldn't see whether FormLister would populate User TV's by default in v3.1+ but I had a need for it.

When Evo changed to a one user database format it created a break away from WebLoginPE and it's extended attributes. Formlister can be utilised to access the data in the table but now you can add template variables for users.

This will show you how to populate User TV's to a FormLister call.

Hopefully this will cover everything you will need.

Snippet Call for you User Profile Page: YourProfile

  [!FormLister?
	&prepare=`fmUserTVValues`
	&model=`Pathologic\EvolutionCMS\MODxAPI\modUsers`
	&formid=`registerForm`
	&controller=`Profile`
	&requiredClass=`has-warning`
	&errorClass=`has-error`
	&errorTpl=`@CODE:<small class="help-block information">[+message+]</small>`
	&rules=`{
		"username":{
			"required":"Enter your username",
			"alphaNumeric":"Only letters and numbers",
			"custom":{
				"function":"\\FormLister\\Register::uniqueUsername",
				"message":"Name already taken"
			}
		},
		"email":{
			"required":"Enter email",
			"email":"Incorrect email",
			"custom":{
				"function":"\\FormLister\\Register::uniqueEmail",
				"message":"This email is already in use by another user"
			}
		},
		"password":{
			"required":"Enter password"
		},
		"repeatPassword":{
			"required":"Retype password",
			"equals":{
				"message":"Passwords do not match"
			}
		}
	}`
	&formTpl=`@CODE: 

<form role="form" id="websignupfrm" method="post" name="websignupfrm" action="[+action+]">
	<input type="hidden" name="formid" value="registerForm"/>
    <h3>User Details</h3>
	<div id="wlpeUser">
		<fieldset>
			<div class="form-group [+username.classname+]">
				<label class="control-label" for="su_username">User name:</label> 
				<input type="text" name="username" id="su_username" class="form-control" maxlength="30" value="[+username.value+]" placeholder="Enter Username" READONLY/>
				[+username.error+]
			</div>

			<div class="form-group [+fullname.classname+]">
				<label class="control-label" for="fullname">Full name:</label> 
				<input class="wide" type="text" name="fullname" id="fullname" class="form-control" maxlength="100" value="[+fullname.value+]" placeholder="Enter fullname"/>
				[+fullname.error+]
			</div>

			<div class="form-group  [+email.classname+]">
				<label class="control-label" for="email">Email address:</label> 
				<input class="wide" type="text" name="email" id="email" class="form-control" value="[+email.value+]" placeholder="Enter email"/>
				[+email.error+]
			</div>
			
			<div class="form-group [+password.classname+]">
				<h3>Password (only use if you wish to change your password)</h3>
				<label class="control-label" for="su_password">Password:</label> 
				<input type="password" name="password" id="su_password" class="form-control" placeholder="Enter password"/>
				[+password.error+]
			</div>
			<div class="form-group [+repeatPassword.classname+]">
				<label class="control-label" for="confirmpassword">Confirm password:</label> 
				<input type="password" name="repeatPassword" id="confirmpassword" class="form-control" placeholder="Confirm password"/>
				[+repeatPassword.error+]
			</div>
			
			
			<div class="form-group [+country.classname+]">
				<!--<h3>Optional Account Profile Info</h3>-->
				<label class="control-label" for="country">Country:</label>
				<select size="1" name="country" id="country" class="form-control" >
					<option value="" selected="selected">&nbsp;</option>
					<option value="1">Afghanistan</option>
					<option value="2">Albania</option>
					<option value="3">Algeria</option>
					<option value="4">American Samoa</option>
					<option value="5">Andorra</option>
					<option value="6">Angola</option>
					<option value="7">Anguilla</option>
					<option value="8">Antarctica</option>
					<option value="9">Antigua and Barbuda</option>
					<option value="10">Argentina</option>
					<option value="11">Armenia</option>
					<option value="12">Aruba</option>
					<option value="13">Australia</option>
					<option value="14">Austria</option>
					<option value="15">Azerbaijan</option>
					<option value="16">Bahamas</option>
					<option value="17">Bahrain</option>
					<option value="18">Bangladesh</option>
					<option value="19">Barbados</option>
					<option value="20">Belarus</option>
					<option value="21">Belgium</option>
					<option value="22">Belize</option>
					<option value="23">Benin</option>
					<option value="24">Bermuda</option>
					<option value="25">Bhutan</option>
					<option value="26">Bolivia</option>
					<option value="27">Bosnia and Herzegowina</option>
					<option value="28">Botswana</option>
					<option value="29">Bouvet Island</option>
					<option value="30">Brazil</option>
					<option value="31">British Indian Ocean Territory</option>
					<option value="32">Brunei Darussalam</option>
					<option value="33">Bulgaria</option>
					<option value="34">Burkina Faso</option>
					<option value="35">Burundi</option>
					<option value="36">Cambodia</option>
					<option value="37">Cameroon</option>
					<option value="38">Canada</option>
					<option value="39">Cape Verde</option>
					<option value="40">Cayman Islands</option>
					<option value="41">Central African Republic</option>
					<option value="42">Chad</option>
					<option value="43">Chile</option>
					<option value="44">China</option>
					<option value="45">Christmas Island</option>
					<option value="46">Cocos (Keeling) Islands</option>
					<option value="47">Colombia</option>
					<option value="48">Comoros</option>
					<option value="49">Congo</option>
					<option value="50">Cook Islands</option>
					<option value="51">Costa Rica</option>
					<option value="52">Cote D&#39;Ivoire</option>
					<option value="53">Croatia</option>
					<option value="54">Cuba</option>
					<option value="55">Cyprus</option>
					<option value="56">Czech Republic</option>
					<option value="57">Denmark</option>
					<option value="58">Djibouti</option>
					<option value="59">Dominica</option>
					<option value="60">Dominican Republic</option>
					<option value="61">East Timor</option>
					<option value="62">Ecuador</option>
					<option value="63">Egypt</option>
					<option value="64">El Salvador</option>
					<option value="65">Equatorial Guinea</option>
					<option value="66">Eritrea</option>
					<option value="67">Estonia</option>
					<option value="68">Ethiopia</option>
					<option value="69">Falkland Islands (Malvinas)</option>
					<option value="70">Faroe Islands</option>
					<option value="71">Fiji</option>
					<option value="72">Finland</option>
					<option value="73">France</option>
					<option value="74">France, Metropolitan</option>
					<option value="75">French Guiana</option>
					<option value="76">French Polynesia</option>
					<option value="77">French Southern Territories</option>
					<option value="78">Gabon</option>
					<option value="79">Gambia</option>
					<option value="80">Georgia</option>
					<option value="81">Germany</option>
					<option value="82">Ghana</option>
					<option value="83">Gibraltar</option>
					<option value="84">Greece</option>
					<option value="85">Greenland</option>
					<option value="86">Grenada</option>
					<option value="87">Guadeloupe</option>
					<option value="88">Guam</option>
					<option value="89">Guatemala</option>
					<option value="90">Guinea</option>
					<option value="91">Guinea-bissau</option>
					<option value="92">Guyana</option>
					<option value="93">Haiti</option>
					<option value="94">Heard and Mc Donald Islands</option>
					<option value="95">Honduras</option>
					<option value="96">Hong Kong</option>
					<option value="97">Hungary</option>
					<option value="98">Iceland</option>
					<option value="99">India</option>
					<option value="100">Indonesia</option>
					<option value="101">Iran (Islamic Republic of)</option>
					<option value="102">Iraq</option>
					<option value="103">Ireland</option>
					<option value="104">Israel</option>
					<option value="105">Italy</option>
					<option value="106">Jamaica</option>
					<option value="107">Japan</option>
					<option value="108">Jordan</option>
					<option value="109">Kazakhstan</option>
					<option value="110">Kenya</option>
					<option value="111">Kiribati</option>
					<option value="112">Korea, Democratic People&#39;s Republic of</option>
					<option value="113">Korea, Republic of</option>
					<option value="114">Kuwait</option>
					<option value="115">Kyrgyzstan</option>
					<option value="116">Lao People&#39;s Democratic Republic</option>
					<option value="117">Latvia</option>
					<option value="118">Lebanon</option>
					<option value="119">Lesotho</option>
					<option value="120">Liberia</option>
					<option value="121">Libyan Arab Jamahiriya</option>
					<option value="122">Liechtenstein</option>
					<option value="123">Lithuania</option>
					<option value="124">Luxembourg</option>
					<option value="125">Macau</option>
					<option value="126">Macedonia, The Former Yugoslav Republic of</option>
					<option value="127">Madagascar</option>
					<option value="128">Malawi</option>
					<option value="129">Malaysia</option>
					<option value="130">Maldives</option>
					<option value="131">Mali</option>
					<option value="132">Malta</option>
					<option value="133">Marshall Islands</option>
					<option value="134">Martinique</option>
					<option value="135">Mauritania</option>
					<option value="136">Mauritius</option>
					<option value="137">Mayotte</option>
					<option value="138">Mexico</option>
					<option value="139">Micronesia, Federated States of</option>
					<option value="140">Moldova, Republic of</option>
					<option value="141">Monaco</option>
					<option value="142">Mongolia</option>
					<option value="143">Montserrat</option>
					<option value="144">Morocco</option>
					<option value="145">Mozambique</option>
					<option value="146">Myanmar</option>
					<option value="147">Namibia</option>
					<option value="148">Nauru</option>
					<option value="149">Nepal</option>
					<option value="150">Netherlands</option>
					<option value="151">Netherlands Antilles</option>
					<option value="152">New Caledonia</option>
					<option value="153">New Zealand</option>
					<option value="154">Nicaragua</option>
					<option value="155">Niger</option>
					<option value="156">Nigeria</option>
					<option value="157">Niue</option>
					<option value="158">Norfolk Island</option>
					<option value="159">Northern Mariana Islands</option>
					<option value="160">Norway</option>
					<option value="161">Oman</option>
					<option value="162">Pakistan</option>
					<option value="163">Palau</option>
					<option value="164">Panama</option>
					<option value="165">Papua New Guinea</option>
					<option value="166">Paraguay</option>
					<option value="167">Peru</option>
					<option value="168">Philippines</option>
					<option value="169">Pitcairn</option>
					<option value="170">Poland</option>
					<option value="171">Portugal</option>
					<option value="172">Puerto Rico</option>
					<option value="173">Qatar</option>
					<option value="174">Reunion</option>
					<option value="175">Romania</option>
					<option value="176">Russian Federation</option>
					<option value="177">Rwanda</option>
					<option value="178">Saint Kitts and Nevis</option>
					<option value="179">Saint Lucia</option>
					<option value="180">Saint Vincent and the Grenadines</option>
					<option value="181">Samoa</option>
					<option value="182">San Marino</option>
					<option value="183">Sao Tome and Principe</option>
					<option value="184">Saudi Arabia</option>
					<option value="185">Senegal</option>
					<option value="186">Seychelles</option>
					<option value="187">Sierra Leone</option>
					<option value="188">Singapore</option>
					<option value="189">Slovakia (Slovak Republic)</option>
					<option value="190">Slovenia</option>
					<option value="191">Solomon Islands</option>
					<option value="192">Somalia</option>
					<option value="193">South Africa</option>
					<option value="194">South Georgia and the South Sandwich Islands</option>
					<option value="195">Spain</option>
					<option value="196">Sri Lanka</option>
					<option value="197">St. Helena</option>
					<option value="198">St. Pierre and Miquelon</option>
					<option value="199">Sudan</option>
					<option value="200">Suriname</option>
					<option value="201">Svalbard and Jan Mayen Islands</option>
					<option value="202">Swaziland</option>
					<option value="203">Sweden</option>
					<option value="204">Switzerland</option>
					<option value="205">Syrian Arab Republic</option>
					<option value="206">Taiwan</option>
					<option value="207">Tajikistan</option>
					<option value="208">Tanzania, United Republic of</option>
					<option value="209">Thailand</option>
					<option value="210">Togo</option>
					<option value="211">Tokelau</option>
					<option value="212">Tonga</option>
					<option value="213">Trinidad and Tobago</option>
					<option value="214">Tunisia</option>
					<option value="215">Turkey</option>
					<option value="216">Turkmenistan</option>
					<option value="217">Turks and Caicos Islands</option>
					<option value="218">Tuvalu</option>
					<option value="219">Uganda</option>
					<option value="220">Ukraine</option>
					<option value="221">United Arab Emirates</option>
					<option value="222">United Kingdom</option>
					<option value="223">United States</option>
					<option value="224">United States Minor Outlying Islands</option>
					<option value="225">Uruguay</option>
					<option value="226">Uzbekistan</option>
					<option value="227">Vanuatu</option>
					<option value="228">Vatican City State (Holy See)</option>
					<option value="229">Venezuela</option>
					<option value="230">Viet Nam</option>
					<option value="231">Virgin Islands (British)</option>
					<option value="232">Virgin Islands (U.S.)</option>
					<option value="233">Wallis and Futuna Islands</option>
					<option value="234">Western Sahara</option>
					<option value="235">Yemen</option>
					<option value="236">Yugoslavia</option>
					<option value="237">Zaire</option>
					<option value="238">Zambia</option>
					<option value="239">Zimbabwe</option>
				</select>
					[+country.error+]
			 </div>
		</fieldset>
	</div>
	
	<h3>User Template Variables</h3>
	
	<div id="wlpeUser">
		<fieldset>
			<div class="form-group [+faouritecolour.classname+]">
				<label class="control-label" for="su_favouritecolour">Favourite Colour:</label> 
				<input type="text" name="favouritecolour" id="su_favouritecolour" class="form-control" maxlength="100" value="[+favouritecolour.value+]" placeholder="Enter Your Favourite Colour" />
				[+favouritecolour.error+]
			</div>
		</fieldset>
	</div>
      
     <div class="form-group">
		 <fieldset>
         	<input type="submit" class="btn btn-success btn-lg" value="Submit" name="cmdwebsignup" />
		 </fieldset>
	 </div>

</form>

<script language="javascript" type="text/javascript"> 
	var id = "[+country.value+]";
	var f = document.websignupfrm;
	var i = parseInt(id);	
	if (!isNaN(i)) f.country.options[i].selected = true;
</script>
`
!]

Create a new snippet fmUserTVValues and paste the following code in it:

<?php
$data = \UserManager::getValues(['id' => $modx->getLoginUserID()]);

foreach ( $data as $detail => $value ) {
	$FormLister->setField($detail, $value);
}

Create a Text Template Variable favouritecolour and assigned it to a User Role (I've selected Power User)

Ensure you change your user to the same role as above and populate the template variable in the user account

Explanation:

We've add a prepare parameter to our FormLister Call in order to populate placeholders corresponding to any assigned template variables.

We created our snippet to correspond with the FormLister prepare parameter. This snippets gets any assigned template variable and populates any placeholders.

We created a new template variable in this example to keeps things simple. The TV is just a plain text field.

Cavaet:
I haven't tested this with changing the value of the TV on the page and saving it.