Computer controlling motion-detect photography.
 

I have an Olympus E-5.

I already have a gadget to take time-lapse photos, and this works OK.

What I REALLY need is E-5 compatible software, loadable on to a
SurfacePro4 computer, capable of taking photos triggered by motion on
the viewfinder screen. (Such as those used in wild-life
motion-detection cameras.)
Preferably selectable detected-motion area on the screen as available
on some CCTV systems. (To exclude extraneous motion.)