In order to upload Sample Packs to your profile Traktrain require a paid membership activated ✅ :
You will find a "Kit" trigger near the Track Tags section of the Upload Track page and Kit Options to set up the price, description, etc.
Using Reverb Returns 🎧
When applying reverb, consider the option of using them on return-channels.
Another advantage is that you can edit your reverb-tails separately, which can clean your mix a lot. Try to only use 2-3 different reverbs.