Sampler with choke function?

I would like to use the Organelle as a sampler to play long stereo samples as backing tracks in my sets. I looked into the Long File Player patch which is cool but has the problem, that it stops the sample when triggered again instead of retriggering it.
What I need would be either a sampler that chokes other samples when triggered or that has a one-shot mode for samples.
Is there anything out there that has this feature or could I eventually edit the Long File Player so that it retriggers instead of stopping the sample?