From WGT News:
"CHALLENGES – You currently cannot play Alt
Shot games for WGT Credits, like you can in Match Play, Skins and CTTH
Challenge games, but let us know if you'd like to see that added in the
future."
Yes, please sir, can we have Alt Shot Challenge option? Would be a great addition and easy to implement.
While you're at it, the option to change wind to heavy/low too - in Skins, MPC and Alt Shot.
Oh, the option to extend time to 5 minutes after disconnect would be the icing on the cake.
A man can dream.