Hello,
That depend on how you look at it.
In a traditional view it would be a yes you have up to 16 steps.
But you do have the Division, the Polyrythm and the other Seq/ Arp features. This give some options for much longer sequences. Unfortunately the DIV/ division feature is'nt set pr step though.
You also have modulators like Functions that also include the option to control Pitch parameters. That also add options for some longer fully controlled sequences.