[keycloak-user] How to add new custom form for additional user management

Hello, In my Keycloak configuration, there are a number of custom attributes defined for each user. I would like to offer the possibility to manage these attributes in a form similar to the “account profile” form, not using and modifying the existing account.ftl itself, but creating a new template for that (eg: secondary_account.ftl). What is the recommended approach to do this? I would assume I need to create a new SPI, but I am not sure what would be the next steps to configure it and make it work. I think what I need is something in the same direction as the domain-extension example, but it’s not exactly the same, as I want to 1) create a new form and 2) base that form data in the existing domain of the user. Could someone give some pointers? Thanks in advance!