As a ham radio operator running lots of software for various forms of communications including the fact that the radio I use is a Software Defined Radio there are occasions where an event on screen may only occur every so often I would like to record portions or all of a screen in a time laps format. 1 frame ever x seconds or x frames per second. I have been thru all the settings and can not find this in Snagit or Camtasia. An armature astronomer friend wanted to do this with the display from his telescope that gets sent to the tracking and viewing computer. Right now he captures a series of individual frames then has to process them into a time lapse video.