So, playing dungeons that expire, e.g. the frontier ones that only let you do X number of runs per key.

When it comes up "this dungeon has expired", it takes about 10 actions to get to the point of repeating the dungeon. Pressing "OK", getting to the book of souls, finding the key soul that you want to use, pressing "OK" when the key soul is used, exiting the book of souls, going to the frontier dungeon, pressing play etc.

It would be beneficial, when the "this dungeon has expired" window appears, for there to be a "use key" button, as well as the "ok" button, that would cut down the number of actions necessary to refresh the dungeon.