The Symmetry tools are not new. We've had them for a while. See these pages for example.

Symmetry vs. Mirror mode
http://www.thebest3d.com/howler/whatsnew/symmetry-vs-mirror/index.html

Symmetrical Painting
http://www.thebest3d.com/howler/whatsnew/symmetrical-painting/index.html

This dates back to PD Howler 6 or thereabouts. It also includes a Kaleidoscope drawing mode.


What's new?

We've made it a little easier to use now, by placing it in its own floating panel, so you can keep it up and accessible without having to go through a pulldown menu.



 

Here's a quick description in video:

https://youtu.be/qfhlp3DRVcw