Dialog box to confirm activation of buttons that cause long loading time

Some features will cause Dungeon Alchemist to take a long time to respond, and if you are working on a big map, might crash the program. Like cinematic mode.

Would it be possible to add a dialog to confirm activating the functionality? Maybe the dialog could only start appearing when you have a big file size?
Something like:
"Cinematic mode may take a little while to load. Do you want to activate it?"