Looks like no, and the limitation about PSK reporter is known.
See User Guide section 7.5
On Thu, 2 Jun 2022 at 09:53, Phil Cooper via groups.io <pcooper=
We are now using the special event call of GB70U from Guernsey, and when I
set the callsign to GB70U, the grid is not transmitted at all.
Even if I sent Tx5 to send CQ GB70U IN89, it still only send CQ GB70U.
Is there a way to get the grid sent?
It would be useful for us to be able to send the grid, so that PSKReporter
etc can pick up the call.
73 de Phil GU0SUP