Do I Need the Xplotter

What is the “Xplotter,” where do I get it, and do I need it now, while I am just getting set up?

If you are plotting for mining, then you would need it to prepare your disks for mining.

I suggest trying out engraver instead of xplotter -

Download here - https://github.com/PoC-Consortium/engraver/releases

Guide / Wiki here - https://github.com/PoC-Consortium/engraver/wiki