Altair 21.0 Change Log: Re-write of the Strip Chart display for instant zoom in and zoom out. Re-write of the Scope Chart to include a trigger feature. Improvements Archive Playback feature. Separation of Archive Record and Archive Playback features. Allows user to record data while playing back a data file. Archive Playback adds step sizes of 10x and 100x major frames. Archive Playback adds playback speeds of 2x, 4x, and Max. Improvements to Archive Playback GoTo Time featu