Built in image occlusion problem

I just switched from image occlusion enhanced to native built in anki and i encounted some problem.

I want to add photo to the back extra field of the card ( which is not achievable in image occlusion enhanced , but i cannot see where to add it.

anki website said you can use the toggle mask editor, but where the heck is the toggle mask editor?

also i want to ask is there a way to control v to paste my clipboard photo when creating image occlusion flashcard?
thank you.

also, i find that command shift O is not working in the built in image occlusion. When i press command shift O it directly enter image occlusion enhanced add on. How do I fix this?

I found this post but i still couldnt get it, please help.

This is the editor.
Switching between fields view and back.

And I’m not an expert in this, I’m the author of another button, the one to the right.

What is it that you are expecting to happen instead? As far as I know, that is a shortcut established by that add-on, so it only works with that add-on.

thank you so much for your reply!

No, i just ask whether it has a short cut to open the image occlusion or how to set it up. But sinice you said it is not supported, its fine, Thank you for your reply anyways!