If i understand you this is about stretching Samples and get them to play at a different pitch than recorded?
Not that i know about. LMMS has a plugin "FM-pitchshifter', and it 'works' kind of, there is bad distortion, Beside that LMMS has no pitchshifting ao sample-stretching.
You may find some VST that can do it, but i do not know any
Besides that, since you are new in Forum
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