I ALSO HAVE A FR3X, I THINK WHAT YOUR LOOKING FOR ARE SET YOU CAN EDIT. ROLAND HAS A SOUND EDITOR YOU CAN DOWNLOAD THEN EDIT YOUR SOUNDS. THEY SAY IT'S EASY, BUT IT WILL TAKE SOME TIME. TRY THAT OR CHECK WITH NOELS PROGRAMS, HE HAS SOME GOOD ONES.
You are at the right location. Search the Blogs for PH2 or PH3 - they each have over 13 "Sessions" and at each Session location - I have a link to the PDF of each session's "companion" matierial - theory, additional songs, cord work, etc. It is all FREE.
Even though Lesson Book 2 might be low for you - start there - I have alot of chord work that starts early and grows pretty fast.