Hi DannyUK

congratulations on purchasing great instruments.
Check out the instructions written long ago by @technicsplayer.
SD CARD TUTORIAL

Everything you need is described there. From this link you can download Factory Rhythms for KN2000, KN3000 and KN5000. I didn't put in for KN6000 and KN 7000 because you don't need it.

Reprise KN2000 KN3000 KN5000