Halt after button 4 held for 5 seconds

[tompreston]

"I wonder if I could ask if your option of pressing button 4 to exit could be put back in perhaps hold button for 5 second puts PI into a HALT state. If you are outdoors using battery once finished using the camera then you may crash the program even SD card if battery goes flat before getting home. Once in a HALT state battery can be removed for journey home."

[videojedi]

Sounds like a really good idea.

I use the network halt function at the moment.