Could you please introduce an order allowing transfers of Cargo, teams or personnel with another TG.
I frequently have freighter TGs delivering Jumpgate Components to JUmpgate contruction TGs, and either I have to manually move the freighters to the other fleet or give a join order after the fleets meet up and then re-create the Frieghter TG manually (as it gets Zapped in the join order).
I also occasionallly have two fleets meeting up to move a commander or team accross (usually for delivery elsewhere at high speed) and this would help this scenario too
Cheers
Mike