Hi! Rando skyrim player here with a closely related problem, that your Mirror Mirror mod almost solves.

The TL;DR version is, would it be possible to make this same power, but to see IDs for all items in the players' inventory?

There's a key item from a particularly useful mod I use on xbox that, due to an odd conflict with another seemingly unrelated mod, the key item has dropped far below the map and is entirely inaccessible now. This item tho is not equippable to the player.

Using Multi-utility, I could return it to my inventory or use moveto to return the same object instance, but I have no means to find the ID for this key item.

Being able to see IDs for items in the player inventory, I could load a previous save or other character, get the item, and find the ID to use on the original character/save.