[Discuss-gnuradio] Switching between TX and RX on XCVR2450

Hi,

I wonder if it is possible to switch between TX and RX on XCVR2450 using GRC (in the same workflow).
If not, what is the easiest way to achieve it?

I would like to build an application that transmits a signal and then switchs to reception. Afterwards it has to switch to TX again and so on.

Many thanks,
Jorge.