Help with the oblivion construction set?

I have been learning how to use the oblivion construction set and I am almost done with my first “real” mod. I have a castle and the interiors are done, I have my own enchantments for my weapon, and I know the basics of scripting and how to use the CS in general. The last part of my mod is the part I’m having trouble with I want a companion that I can summon at will (easy enough) but I want my companion to be able to recharge, repair, barter, and train a skill. I have duped NPC’s that can do this but when I move them to a different cell the options to do these disappear, the AI still has these checked and I linked a new merch chest but it still does not work. Do I have to script this in, am I doing something wrong, is this possible.