Passenger Mounts, possible to hotkey?

I'm wondering if anyone has come up with a way to keybind hoping into a passenger mount? Apologies if this has been asked before, but I wasn't able to find anything in my searches here. I have 3 characters with the touring rockets, and it would rock to be able to have a hotkey to have the 2 other character's hop in the passenger seats. As long as it's possible to hotkey the passenger getting onto a mount, it seems like one could come up with a nice 1 button mount solution using ISBoxer steps.

Thanks for any ideas!

you could use a formation type keymap combined with setview and mouse repeater to achieve this, but frankly, it may be easier to get mounts for all your toons instead.

Personally I find hippogryphs are pretty resistant to my leader's rocket flames...

Create a key for those 2 toons to target who they're supposed to jump in with, and then IWT.

IWT is the way to do it.