Hi, do you have some other plugin that adds a Formation command to battle for actors? Formation is available in the menu only, not in battle by default. If you have another plugin that adds it to battle, you could hook it up using this plugin to a command, you would just need to ask the other plugin author what js is needed to access the command.
For the item command, how would you expect it to work from the party command window? By default, using an item in battle makes an actor use that item when it is their turn. If called from the party command window, which actor would you want to use the item, and after selecting an item from the party command window, would you expect the player to end up back at the party command window, and would the actor have their command selection skipped if an item was selected?