A previous post of mine showed this:
function serverCmdbla(%client)
{
messageclient(%client,'',"Bla: " @ %client.brickgroup.vargroup.getVariable("Client","bla",%client));
}
For this case, maybe it would be %arialVariable = %brick.getGroup().varGroup.getVariable("fxDtsBrick","arialVariable",%brick); ?
I swear there was an easier function though.