Hold/Latch function possible?

Hey everyone,
just joined the forum to find out if there is a possibility to configure the Keystep in such a way that I can use Hold to play a chord or note at a time and when I press the next chord/note, it replaces the other chord/note.
I don’t want to use this with the Sequencer or the Arp. I just want the Keystep to hold chords or single notes, so I can play along with other Instruments like guitar.

Is this possible? I’ve played around with Midi Control Center and searched the web but can’t seem to use the Hold-function as I want it to.