I've had this truck about six weeks and put may be 600 miles on it, and can see some wear on the inside rib of front tires. Can these trucks be aligned with adjustments to caster and camber? Or is it just the toe that can be changed?

 

All the same alignment as any other.
The Electric steering has sensors as well that need the alignment correct so you don't bias the steering from pulling effects of miss-alignment.
Be sure the alignment is done with the steering wheel straight ahead and dash shows Zero center indication.
Good luck.