1) Make LinuxCNC remember the tool in the spindle:
A too-hard solution: https://forum.linuxcnc.org/forum/49-basic-configuration/31150-current-tool-number-permanent#76480
2) Jog whjle paused:
A work around is the move-off program. A better solution was coded as proof of concept by Michael many years ago: https://www.youtube.com/watch?v=2wabcOH9YAA Andy apparently patched linuxcnc from machinekit at one time too: https://www.youtube.com/watch?v=mSx2zIUWVzQ