HoMM3 HD is a mod (add-on) for the game Heroes of Might and Magic 3.

It can be done, but perhaps only as an item in the cheat menu, so as not to contradict the mod's concept. However, I definitely won't have the time or desire to implement this feature. Unfortunately.

Added 1 hour 32 minutes later
Here, I plan to add 3 buttons to the exchange window for transferring/exchanging artifacts from the backpack.
I don't know how to proceed. There are several options.

1) Keep the old 3 buttons for exchanging all artifacts + add 3 buttons for exchanging backpack artifacts and 3 buttons for the doll's artifacts.
- I really don't like this option because of the excess of buttons. Although the advantages are: the familiar functionality is preserved, and the new functionality is fully added.

2) Keep the old 3 buttons for exchanging all artifacts + add 3 buttons for the backpack.
- I don't like this. Fewer buttons is a plus. Preserving the familiar functionality is a plus. But to exchange/transfer only the doll's artifacts, you will need to press two buttons: general -> + backpack <-

3) Change the current functionality of the 3 buttons from general exchange to exchange of doll artifacts + add 3 buttons for the backpack.
I like this option the most. But the downside is: the familiar functionality disappears, and to transfer/exchange all artifacts, you need to click two buttons: doll + backpack.
For this option, we can make [F11] work as usual, i.e., doll + backpack.

What do you think?