Selector tool to un-hide portions of a hide volume

What Feature would you like to see included within TaleSpire?
The ability to select an area of a hide volume to “un-hide” it.

What situations would this Feature be useful?
*CURRENT* In a dungeon crawl you have your dungeon portioned out in multiple hide volumes, as the party moves forward you right click and make a specific area visible.

building a slab with multiple hide volumes can be a pretty big tedious chore, you have to make sure they don’t overlap and try to figure out just how far the party can see in the first place to know how big to make each individual hide volume.

*IDEA* In a dungeon crawl you have your entire dungeon slab in one hide volume, as the party goes room by room you are able to use a selector box to make whatever portion of the slab you need visible.

My idea is that you literally include your slab in as few hide volumes as possible then select hidden areas to make them visible as the party moves forward. This would make building slabs with large amounts of hide volume significantly easier. Also it would make the experience better while playing the slab as you will have on the fly precision control over what is visible on the map.

Additional Thoughts/Details

Thanks for taking the time to read and consider my request, love the game keep up the good work.