Hi Marcel,
About turning down the volume of the monitors without affecting the volume of the headphones in the LT.
Not sure if this works, I haven’t tried it cause I use a small external mixer between my LT and monitors, but I have this idea where output 1 is set to whatever works for the headphones (‘multi’ will work I guess), and output 2 is set to send 1/2. And put the cables of the monitors in the send 1/2 slots. It is just an idea , so don’t blame me if anything goes wrong :)....but the manual says that send 1/2 can act as an additional output block. I think/guess you have to set the output settings of send/return 1 and 2 to “Line” in Global Setting > ins/outs.
It now is not completely separate, cause the big volume knob affects every volume, but you now can - as you wrote as your problem - turn down the volume of the monitors by turning down the level parameter of the send 1/2 block, without affecting the volume of the headphones.
I think it should work, sorry if I am wrong.
Greetings, Marcel (I have the same name :) )