Just installed Hazard Light to check it out. But I couldn't load my save file:

The mod Hazard Lights caused a non-recoverable error.
Please report this error to the mod author.

Error while running event Hazard-Lights::on_init()
Hazard-Lights/control.lua:58: Require doesn't work from console and from remote.call.
stack traceback:
[C]: in function 'require'
Hazard-Lights/control.lua:58: in function <Hazard-Lights/control.lua:56>

Same.

Ditto. :-)

Sorry for not noticing earlier. fixed now

Thank you, it works now! Regarding your selection tool (the other mod): Perhaps you should add a note where to find it! Took quite a while until I figured out that it's among the blueprinting stuff. :-)

will do

Great, thanks again!