[Elecraft] KXV3 clarification requested

[Chad WE9V]

>  I just tried it out on my radio and thought that in split mode I could
>  have a different antenna selected but on the same band.
>
>  I couldn't with the firmware I am running now.
>
>  So, the correct answer is at present that you have to hit the antenna
>  switch to toggle.  Perhaps a future firmware release will let you set up
>  the other antenna for Tx.

So, do I need to add a $100 KXV3 to my order just to get the RX ANT
feature, or will this functionality be added to the firmware?  That
is, when you only have a K3 and KAT3, have the ability to TX on one
antenna port, and automatically RX on the other antenna port?

Chad WE9V