Big Problem
Windows do the instances not in one group of the windows Task-Bar when startet with different command lines. Its not matter ob using -AutoRun or -T. Every change of the command line cause, that the instance will be behandelt like another program.
Therefore, the T-command is useless for me.
I Test at time the 7+ Taskbar Tuner again, maybe this tool will allow me that the instances will be in a group again, but i dont believe that. The Taskbar Tweaker can regroup the icons with a random Program-ID. Its a must have.
The only way is that you integrate this in MC. Watch the Titles of Firefox, this are a nice example.