Is there a way to delete all the samples in the static and flex slots that are not being used in a project?
Yup…
FUNC + Mixer / Project / Purge Samples
ok, thanks, I’ll try it out
For a really clean portable project you can also collect all samples to the project folder.
In this case I would suggest something like Purge Samples> Save to New Project> Collect Samples to Project Folder (From with the newly saved project)
The above example is from memory, I have not done this procedure on my OT for some time so don’t take these exact steps as gospel and to be safe make a backup of your project first.