I really miss trigger offset in ms to delay the trigger of a sample shortly inside Sample One XT and Impact XT. This is really strong for layering sounds inside these instruments as example or to generate different feels and mixing tasks like a haas effect.
This feature could be also quite handy inside a pattern editor to delay every trigger with some milliseconds if wanted, please add it to the probability, velocity and repeat step automation view.
Beside that and because I dont want to open a new feature request I mention another suggestion for sample one XT: I also miss a hold parameter for the envelope, especially for short one shot samples this is really handy.