Select And Operate using Transform User Preset 20 – Logic Pro keyboard command of the day

  Select And Operate using Transform User Preset 20

Process the MIDI events using program 20. Lots of program slots. Unlikely to ever need 30 user-defined programs. The built-in programs do a lot of the typical heavy lifting.

Logic Pro MIDI Transform window overview – Apple Support

The MIDI Transform window is a powerful tool for edits that would otherwise be impossible (or tedious). For example, imagine an orchestral project that has been sent to you for editing. The individual violin and viola parts were recorded with a different string library. Two hundred MIDI regions contain aftertouch information that introduces an unpleasant pitch modulation, and some sample layer switching artifacts when played with your string samples. After looking at this aftertouch information, you discover that only a small range of values is causing the problem. Your options: edit your sampler instruments, manually remove all aftertouch information (region by region, or globally, thus losing the performance benefits that the aftertouch information provides), or alter the problematic values in the MIDI Transform window.