Um, yeah, no way I can train my Borg engineer Boff with Emergency Power to Shield III on my tactical captain... and no way I can trade her to another player for him to train her for me either.
It'd be really swell if tech for that could finally be implemented.
Yes you can. I just found this out last night. If you unequip everything off of a Boff, and open a trade window, you can drag the Boff to the trade window and it'll act as an item. My fleet's already taking this into account and within the next few days we'll be cross-training our Boffs so I can give their Engy Boffs Emergency Power to Shields III and they can give mine the appropriate skills.
EDIT: Unless by that you meant the Borg is bound (I don't have it so I don't know).