I don't know whether or not there's a reason this isn't already a thing, but it seems like something that should've been an in-engine feature ages ago. Currently only blocks and enemies can open shutters (afaik) despite it being such a common Zelda mechanic for secrets to open them.
Block secrets or secrets in general being able to permanently open shutters would be lovely as well.
Edited by Jenny, 27 January 2022 - 10:43 PM.