This was actually addressed with the creation of G2 characters that were introduced in CTA2. G2 characters can have multiple angles (0, 45, 90, 135, 180, 225, 270, 315).
However for G3 characters you will need to create them using either the pre-defined front or side templates in CTA3 or using the PDS templates if you have the Pipeline edition.
So if you have pre-drawn characters that are facing the wrong way for the G3 templates, you can just horizontal flip your character in your image editing software so it matches the template. Then in CTA3 you can have your character facing either left or right by using the Horizontal Flip button on the top toolbar.
Peter
Forum Administrator
www.reallusion.com