Add ability to upload/delete multiple photos in designer

What is the challenge or problem or you are trying to solve?

When I'm crafting my calendar in designer, I can't upload or delete multiple photos in designer.

What is the impact?

This is time consuming to upload and delete one photo at a time.

Describe your idea

I'd like the ability to multiple photos when uploading them into designer as well as the ability to delete multiple photos at the same time.