I have extended model admin to manage my Order dataobject. How can I use my own template for creating new record form? Closest I've achieved is adding order_admin/admin/templates/Includes/LeftAndMain_EditForm.ss template, but then all other modules use this template.
I've noticed that GridFieldDetailForm.ItemEditField() has hardcoded ->setTemplate('LeftAndMain_EditForm.ss') on line 330. Is it possible to override this? If I try to change template for form's GridField in my getEditForm() of my custom model admin, I get blank form, i.e. none of the controls and tags in template get executed (although all of the methods and properties should exist cause it's simply extension of LeftAndMain).
Any other suggestions?