I would like to be able to edit the CQ message to be able to use VarAC in contests or for POTA/SOTA activations etc.
Indeed VARA provide only one type of CQ. But that doesn't mean we can't play with it intelligently. Like the beacons - they are a CQ with -9. I have plans to make -1 for QRP, -2 for /P etc... not no room for SOTA POTA. Therefore what Erik suggested makes perfect sense - during POTA/SOTA events you can all agree on a calling QRG and there, every QSO will be counted as a SOTA/POTA while you can exchange info using the canned messages.
Irad is to tell the final 'truth' but my 2 cents to this is that I've understood the CQ frame is a standard VARA-modem feature and not a configurable sentence. Ie. that VarAC just tells the VARA-modem 'send out a CQ frame with this callsign'
I would put the SOTA/POTA/FF information to the INFO field, the QTH field has most space for additional info.
Not really seeing VARA as a contest mode as it has never been designed for such. BUT it does not mean a VARA contest cound not be held, it would just be rather slow compared to the expected contesting pace. A contest QSO would be similar to a SNRR or PING request, so about 30 seconds per QSO.
Erik OH2LAK TF3EY