OK so the "Level 9 Entrance" Room type means you need all the triforce pieces to go further in that dungeon, would it be possible to set the # of Pieces to a Different #? Instead of the "3 or 6 Pieces" rule, like have any number between 3 - 15 (depending how many can fit on sub-screen)?
If it's not too late or too complicated.
At the moment, Triforce pieces above 8 do not work in the subscreen (although that is certainly something I'd like to see change). I believe that the room you are suggesting can be done through scripting, however I do not think that adding a modifier to the room type would be an unreasonable request.
Hmmm... maybe.
Well yea, a room type like " Need x Number of triforce pieces to continue" in which you would then go to "Data --> Pieces needed" and type in a number from 3 to 15 (or whatever range seems reasonable)