Hey @LPP ,
Welcome to the Community! Thanks for your first post. 
Currently, there is no way to loop your samples in the sampler. Additionally, there is no way to upload custom Looper Packs.
However, if you’d like, feel free to vote on this feature request via the Custom Looper packs post in Suggestions.
As a workaround, what you could do is load your samples to a deck and loop them from there.
To loop multiple samples, you could create a full-length track featuring those samples and seek through the track to loop the individual samples.
I hope this information helps. Feel free to post in the Community if anything else comes up. Have a nice day!
