Convert a rem from one thing to another

eg from a single line flash card to multiline flashcard or even back to plain text
As if you write something then don’t like the format of it you then have to redo the whole thing the way you now want it rather than being able to toggle what format your rem is in

it can be done actually; just put your cursor at any part of the rem you want to change the format of and press Ctrl+/ and type in the search bar your preferred format and select