Screen recording records entire screen not the recording area define

I am experiencing an issue w/screen recording as well. I have 2 monitors connected to a laptop. If I set the record window size to 1000 x 640 or "full screen," and place the dotted record line over my software, I get only about 40% of the software I need plus half of another screen. I really need to use multiple screens. I'm looking for a "snap to screen" option where Storyline will give me another step once I size the window to confirm which active app it's recording from...or you could have a window option pop-up similar to the share screen function in WebEx. Captivate has a similar functionality to confirm and snap to the app or the active window. Because the record window in Storyline is not able to discern which application to record from. I need to have my steps up on one of my monitors and the app I'm recording on another screen, if that makes sense.