You can use attribute type groups to organize various attribute types of your choice. For example, you can group project-specific attribute types, which enables you to edit them efficiently.
Prerequisite
You are a configuration administrator (What is a Configuration administrator?, What is a configuration administrator?) for this tenant.
Procedure
The attribute type group is created and can be used in filters. You can move existing attribute types or create new attribute types in the new attribute type group.
To have access to user-defined method extensions for modeling, users must log out of all databases. The method extensions must be assigned to individual items and to a filter. Users logging in based on this filter can use these method extensions when modeling. You can make method extensions available to databases on another tenant by exporting method filters and transferring the method extensions during the subsequent filter import.
No method help (Ctrl+F1) is available for user-defined types.
To be able to continue using user attributes from previous versions you must import the previous filters that contain all user attributes of the database. These user attributes are created and thus become visible only due to the filter import. Please restore the database of the previous version on your current tenant after the import.