I often set this option for drums and thought it'd be useful as a script. Saves around 2 or 3 mouse button presses...
Apply it by right-clicking on the instrument at the top right and selecting the new menu entry
SustainInstrument_1.0_(2.8).xrnx 985bytes 396 downloads
basically it turns this
into this.. with one click
Edited by Syflom, 30 May 2012 - 16:20.