When cannot remove companion's items via the O screen.
Alt+Pressing duplicate the item to the "discards" instead of removing it. Thus I cannot replace an item with out conversing with that companion and asking to see his equiment. I can only give items to companion via the screen assuming they have a free slot or press the auto upgrade all.

I also noticed the mod uses CompanionsOverseer 1.0 when 1.20 is out.
Any suggesions?