Very simple and lightweight datapack for roleplay or quick server utils.
Write /trigger makeFramesInvisible to turn all frames in radius of 3 block invisible.
makeFramesVisible does the exact opposite.
giveInvFrame add/set [number] gives you the number of custom invisible item frames. Make sure your regular item frame is placed at the utmost left upper side of your inventory or hotbar, otherwise you'll be able to only give yourself one frame at a time before placing it.
That's quite all. Quite lazy but makes it more accessible anyways.
