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[swamperD]

i've found that a lot of my songs end up becoming massive files as i constantly re-edit them and take them in totally different directions.  along the way, i end up with more instruments and patterns than i need, which increases the file size, and, the bigger the file size, the more ram needed to process, the more problems i run into.  sometimes when i save a big file, it freezes or ends up creating garbage patterns and i lose a lot of progress. or "not enough RAM to open file" or whatever that message is.
even if i save new instruments/patterns over old ones, or cut out the wav sample, i can never fully delete an instrument/pattern and, from my user-end POV, it seems that this creates big-file/RAM problems.
i would love a function that zaps individual instruments and patterns.
thanks
-d

[Synthesis]

Maybe you can switch to MilkyTracker and optimize your song (the "Optimize" function is really well done), but you're right, NitroTracker also needs this feature.