I like the button called "programs", but I newer saw the outlines in axis.
I found a trick by indirect calling the program:
Fx. for M101 I write in the file M101:
#!/bin/bash
axis-remote /home/cnc/linuxcnc/nc_files/tools/M101_Flächenfräsen_face-134.py
exit 0
You can insert everithing that you can call by the normal filedialog.
The only ( a bit enoying ) strange behavoiur is that you have to use the "update-funcion" afterwards.
Otherwise the old program runs furteron, also you can see it anymore outlined in axis.