Anyone know anything about composing music using Cubasis (or another piano roll editor) and Roland Sound Canvas?

I wanted to know how if Cubasis has a MIDI piano roll editor and if one could use that with the Roland Sound Canvas app, and if there an app similar to Cubasis that uses Audiobus/Inter-app audio where the sounds of Sound Canvas go into the editing program.

I’m kind of a noob at music editing/software.