Dark subtraction before Plate Solve image

My camera uses an uncooled Panasonic MN-Blah Blah sensor, which has a large amount
of Amp Glow. Without a dark the Plate Solving tools have a tough time finding enough stars.

I have looked but do not see a way to have a dark subtracted from the image before sending to
any of the Plate Solving routines. This is likely available through scripting, but I am not there yet
on my learning curve. Any suggestions?

Bob Parry
Chilliwack Observatory