Across Mail and Drive products, remember selections so we can review an email or picture and select more without losing our previous selection.

Use case: I'm going through my email to select messages to move or delete. I might have 1tenor more selected. If I click on a message instead of continuing the selection, I lose all the previously selected messages and have to start over.

The same situation occurs on Proton Drive, but selecting pictures to determine if I want to delete a duplicate.