Good afternoon. There is a business process with many tasks. In one of the tasks there are two association fields (for simplicity, let's call their field 1 and field 2). As when opening this task, check the value in field 1 and, depending on its value, hide or show field 2?
You can copy the OOTB free marker (.ftl) file for your control. e.g. selectone.ftl located at
alfresco-home\tomcat\webapps\share\WEB-INF\classes\alfresco\site-webscripts\org\alfresco\components\form\controls
then add JavaScript code to it to show/hide your fields.