How can I load samples into the Piano/Keyboard mode?

Hey guys,

I bought myself the MPC One 3 days ago and before I only worked with a Korg Volca.
Now I have one problem what is really making me mad because it's probably really simple.

So I made a drum pattern and after wanted to start using the piano mode. I created a new track, pressed on the Piano/Keyboard button like everyone did on the tutorial videos I watched.
But then somehow I can't load any samples in that mode. It just says "Programm 002" in the Keygroup Program.

In all the Youtube Tutorial Videos I watched no one even mentioned anything about this issue. They just load the samples and start playing.

Can anyone please tell me what I'm doing wrong?

Kind regards
Sam

You add samples to a program via PROGRAM EDIT > SAMPLES. For a keygroup program, you must first select the keygroup you wish to add the sample to (although a new keygroup program only has 1 keygroup). You can add additional keygroups via PROGRAM EDIT > MASTER