Heros and flagging/sticking-them to Party Members

we all know that its possible to tag (or lock-on) your hero to a target foe, but i was kinda hoping that you should have the same option for you party members as well. for instance, i would like to tag one or all three of my heros to another PC party member other than myself. i mean, another party member may need my Tahlkora or Koss more than i do. think of your party member as mobile flags for the heros. that would really come in handy, at least for me. comments please anyone?

I love the idea. I've been running my friend through some places in NF and I would love to leave him my heroes so he can try and kill some things after I run off towards the next map. He also doesn't have level 20 heroes yet, so I would like to be able to ensure his safety when we're fighting outside of Istan. Level 24 Cracked Mesas pwn a level 15 Water Elementalist.