Aquilonian crossbow

[centenniallax81]

The situation arose where a player had declared it as a 1 handed item with a +2 bonus and was using it along with another 1 handed item. The player kicked down the door and faces a monster was cursed and lost the other one handed item and now wanted to change how they were using the item now that they have a free hand. It is my understanding that you can't change items during the middle of combat.