@User i have verified that two gaw commands sent remotely from xschem do work out of the box:

xschem [~] gaw_cmd "load /home/schippes/.xschem/simulations/poweramp.raw"
xschem [~] gaw_cmd "tabledel poweramp.raw"

these two commands sent from xschem console load and unload a rawfile from gaw. I was not confident this was supposed to work, you see, user feedback is important 🙂 . Xschem has a '`gaw_cmd`' command that just sends the string given as argument to gaw. Together with '`gaw_cmd reload`' and the signal sending feature this potentially allows full control from xschem. 🙂 . I have successfully added a '`launcher.sym`' component into a schematic (this allows to execute scripts by ctrl-clicking on them) that does the task. see the '`tclcommand`' attribute highlighted in the image