[Trlog] NAQP question

[Bob Evans]

Now that NAQP is over (great timing on my part), has anyone programmed a
function button to help you work a "moved" guy on another band without
giving up your run frequency?  The situation I'm thinking about is
where, for example, VE9DX has called you on 40M and you ask him to move
to 20M.  I found myself taking a couple of minutes of calling him only
to realize we didn't have 20M conditions anymore, and by the time I gave
up, my run frequency was gone.  
 
I guess I hoping I could load a string into an F key that picks up the
needed station's call from my 40 contact and then calls him on 20 (i.e.
VE9DX de K5WA).  Then a CQ is called back on 40 again.  I hit the F key
again to repeat until I work VE9DX on 20 or go back to normal SO2R
operation.  I'm hoping somebody has already done such a thing and can
help me avoid a pitfall or two as I try to figure out the best setup.
 
I hope I haven't missed this feature in TR, if it actually is a standard
component.  I sure could have used it last weekend.  I just didn't move
enough mults and this would help ease that process...I think.
 
Bob K5WA