Is_custom is read only and checked

I am using the develop branch. It seems the is_custom field is read-only and ticket by default while creating a new custom doctype. The site is already set to develop mode. How to disable this?

Hi @RWEMA_Aimable,

If your site has the develop mode enabled, try to ‘refresh’ Frappe. It should make the is_custom editable.
Else you might have an issue with your develop mode configuration.

Good luck!