Hello 👋 I've added a manual color change print profile.
Unfortunately, It's not possible to add a pause inside a layer so you will have to manually pause the print. I'm describing the procedure on the print profile description.
If something is no clear or you have further questions, don't hesitate to ask 😉
I don't have the A1 :( Maybe I can do something if you send me the outer dimensions of cover, and some pictures of the locking tabs at the back of the cover. But if those tabs are really different from the A1mini that will be super hard for me to draw this part.