Hi there,
and Welcome here…
I would ask you post the code using the code tags above “</>” just paste it in there.
makes reading it and replying WAY easier, and you get better quality help. 
You’ll need a few more posts before you can put up Pic’s etc.Just reply on here and ask any questions you may have, I don’t see why it wouldn’t be possible to use the other uart unless the pins are NOT available, then remapping to others is possible but requires some nuance in the Setup for the code to work.
HTH
GL 
PJ 
Read @msfujino threads on it and other topics , you can get up to speed very quick that way! 