I constructed a track template with 1 Audio and 4 Aux tracks as follow:
Audio track: output to Aux1.
Aux1: output to Aux4, 1 send Aux 2, 1 send Aux 3.
Aux2: output to Aux4.
Aux3: output to Aux4.
Aux4: output to 1 hardware output.
The Audio track is just an anchor to enable the construction the track template. If a new empty project is opened the Template inserts as designed, but... If it’s inserted into an existing project The Aux4 shows up as an Audio track