Sample duplicate/delete

[ustk]

@Christoph-Hart Is it safe to do this in an end user product?
It kind of works here with one sample at a time but duplicating/deleting multiple samples at the same time lead to instant crash almost all the time, and the sample list is messed up, like it has no time to delete before the next duplication…
Should I use the preloading timer after each sample is deleted/duplicated? But in a loop, how?