Very interesting ideas!
You are right, it's quite a different cup of tea and in the current interface, this would be hard to incorporate. Not only do we want to empower you as much as possible, we also want to keep it simple and accessible as a whole for everyone. It's a balancing act.
Still, I understand what you are aiming at: more variety! I would love to see what kind of patterns you have created that have been enhanced with other software and to see how we could make those creations easier for you to experiment with, right in the Repper context. Feel free to share them here in this thread or send them to us.
In the meantime, I can maybe excite you with the fact that the upcoming version of Repper will include new, more versatile pattern types. Heck, I'll include a sneak preview here :-)
This one combines an octagon (eight sides) with a square. Because there is a lot of repetition going on, it's really easy to make it look balanced and pleasing to the eye.
This is a creation of my own, with some interesting kinds of mirroring that I haven't seen anywhere else.
We'll post more upcoming features in the next weeks, here on this forum and our blog.