[Elecraft] Question about K3 vfo's.

[NZ8J]

Is it possible to set the vfo's on the K3 to different bandwidth while
operating split? For example can you set the pileup listening vfo (b) to
a 1khz or wider bandwidth while listening to the dx station on the other
vfo (a) with say a 500 hz filter?  I understand if you have the sub
receiver this is possible, but I cannot find anywhere that specifically
addresses just the two vfo's.
Thanks 
Tim
Nz8J