How to create different melodies/patterns for one track?

Is it possible to create different melodies on one track?
For example: the first part of the song I want to play the 1st melody on track 10 which is sequencing the Roland System-1. Then later at the song i want to change the melody on track 10 for the System-1.
Is that possible?
I don’t know how.
Need help

using patterns?

the pattern is also part of the sequence, so you can sequence them if that’s what your after