Assign Client User to Template

Assign Client User to Template

Acording to the information I found here:
https://help.zoho.com/portal/en/community/topic/is-it-possible-to-assign-client-user-to-external-task-on-projects-templates

It should be possible to add Client users to the template.

Sadly on the settings window only current projects (no templates) are shown:


What am I missing?

This would make the life much easier as when creating a template, we could assign a subcontractor the certain tasks as a owner of the task for future organisation. Im in the middle of creating my first template and this seem a crutial step.