This tool will take the pattern instrument numbers and convert them to the currently selected instrument, for the chosen range.
Accessed via the right-click menu of the instrument box and available user shortcuts.
Shortcuts:
"Convert (Track in Pattern) Instruments to Currently Selected"
"Convert (Whole Track) Instruments to Currently Selected"
"Convert (Selection in Pattern) Instruments to Currently Selected"
Menu Location:
Instrument Box: Convert Notes in : "Track "..etc