Cymbal Muted Crashes

Jun 19, 2019

Hello! I am trying to add muted cymbal crashes to my marching cymbal part but there is no sound in MDL for this. Would I be able to add it myself or is this simply not possible? Sorry, I'm not very savvy with this program.
Edit: I've been trying to edit the .sfz, and it's quite difficult. Is there an easy way to do this with Polyphone or is there an easier program to use?