Need single line text to have multiple lines coral UI

Hi @jacobs1633233,

If you are using AEM as a Cloud, please upgrade to version 2021.4.0 or newer as @vanegi suggested. Unfortunately the change included in AEM as a Cloud is not incorporated in AEM 6.5/6.4. You can still create custom component. Please find all details below.

1. Overlay /libs/dam/gui/coral/components/admin/schemaforms/formbuilder/formfields/v2/textfield, under apps you should get this /apps/dam/gui/coral/components/admin/schemaforms/formbuilder/formfields/v2/textfield, rename textfield to textarea. In the end this should looks like this:
   
2. Copy textfield.jsp from /libs/dam/gui/coral/components/admin/schemaforms/formbuilder/formfields/v2/textfield to /apps/dam/gui/coral/components/admin/schemaforms/formbuilder/formfields/v2/textarea, and rename it to textarea.jsp, this is the expected structure.
   
3. Edit textarea.jsp and paste below code
   

   <%--
   
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      All Rights Reserved.
   
     NOTICE:  All information contained herein is, and remains
     the property of Adobe Systems Incorporated and its suppliers,
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     suppliers and are protected by trade secret or copyright law.
     Dissemination of this information or reproduction of this material
     is strictly forbidden unless prior written permission is obtained
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   --%><%
   %><%@include file="/libs/granite/ui/global.jsp" %><%
   %><%@ page session="false" contentType="text/html" pageEncoding="utf-8"
            import="org.apache.sling.api.resource.ValueMap" %><%
   
   	ValueMap fieldProperties = resource.adaptTo(ValueMap.class);
   	String key = resource.getName();
   	String resourcePathBase = "dam/gui/coral/components/admin/schemaforms/formbuilder/formfieldproperties/";
   
   %>
   
   <div class="formbuilder-content-form" role="gridcell">
       <label class="fieldtype">
       <coral-icon alt="" icon="text" size="XS"></coral-icon><%= xssAPI.encodeForHTML(i18n.get("Text Area")) %>
       </label>
       <sling:include resource="<%= resource %>" resourceType="granite/ui/components/coral/foundation/form/textarea"/>
   </div>
   <div class="formbuilder-content-properties">
   
       <input type="hidden" name="<%= xssAPI.encodeForHTMLAttr("./items/" + key) %>">
       <input type="hidden" name="<%= xssAPI.encodeForHTMLAttr("./items/" + key + "/jcr:primaryType") %>" value="nt:unstructured">
       <input type="hidden" name="<%= xssAPI.encodeForHTMLAttr("./items/" + key + "/resourceType") %>" value="granite/ui/components/coral/foundation/form/textarea">
       <input type="hidden" name="<%= xssAPI.encodeForHTMLAttr("./items/" + key + "/sling:resourceType") %>" value="dam/gui/components/admin/schemafield">
       <input type="hidden" name="<%= xssAPI.encodeForHTMLAttr("./items/" + key + "/granite:data/metaType") %>" value="text">
   
       <% 
           String[] settingsList = {"labelfields", "metadatamappertextfield", "placeholderfields", "titlefields"};
           for(String settingComponent : settingsList){
               %>
               <sling:include resource="<%= resource %>" resourceType="<%= resourcePathBase + settingComponent %>"/>
               <%
           }
       %>
   
       <coral-icon class="delete-field" icon="delete" size="L" tabindex="0" role="button" alt="<%= xssAPI.encodeForHTMLAttr(i18n.get("Delete")) %>" data-target-id="<%= xssAPI.encodeForHTMLAttr(key) %>" data-target="<%= xssAPI.encodeForHTMLAttr("./items/" + key + "@Delete") %>"></coral-icon>
   
   </div>
   <div class="formbuilder-content-properties-rules">
       <label for="field">
       	<span class="rules-label"><%= i18n.get("Field") %></span>
           <%
               String[] fieldRulesList = {"disableineditmodefields", "showemptyfieldinreadonly"};
               for(String ruleComponent : fieldRulesList){
                   %>
                       <sling:include resource="<%= resource %>" resourceType="<%= resourcePathBase + ruleComponent %>"/>
                   <%
               }
   
           %>
       </label>  
       <label for="requirement">
       	<span class="rules-label"><%= i18n.get("Requirement") %></span>
           <% String requiredField = "v2/requiredfields"; %>
           <sling:include resource="<%= resource %>" resourceType="<%= resourcePathBase + requiredField %>"/>
       </label> 
       <label for="visibililty">    
           <span class="rules-label"><%= i18n.get("Visibility") %></span>
           <% String visibilityField = "visibilityfields"; %>
           <sling:include resource="<%= resource %>" resourceType="<%= resourcePathBase + visibilityField %>"/>
       </label>     
   </div>

   In general above code is a copy of textfield.jsp, where granite/ui/components/coral/foundation/form/textfield has been changed to granite/ui/components/coral/foundation/form/textarea
4. Overlay /libs/dam/gui/coral/components/admin/schemaforms/formbuilder/v2/builditems.jsp, under apps you should see below structure /apps/dam/gui/coral/components/admin/schemaforms/formbuilder/v2/builditems.jsp
   
5. Edit /apps/dam/gui/coral/components/admin/schemaforms/formbuilder/v2/builditems.jsp and add below code.
   

   <li class="field" data-fieldtype="text" tabindex="-1" role="menuitem">
     <div class="formbuilder-template-title"><coral-icon icon="text" alt="" size="M"></coral-icon><span><%= i18n.get("Text Area") %></span></div>
     <script class="field-properties" type="text/x-handlebars-template">
       <sling:include resource="<%= fieldTemplateResource %>"
         resourceType="dam/gui/coral/components/admin/schemaforms/formbuilder/formfields/v2/textarea" />
     </script>
   </li>

   You can place above code snippet between list elements representing Single Line Text and Multi Value Text
6. Final result looks like that: