Well done Mech Horse… thanks for making the tutorial… Deke
Very cool Paul!
Nice post! thanks for sharring!!
Yes, very cool, thanks!
Thank you for the write up Paul! Very cool of you!! 
Curves on mesh that can cut topology,
see picture:
Oops wrong thread
Hello Ronald
You could use the topology brush to create pieces that look like panels. However you could also use the EdgeLoop Mask Border in the Geometry>Edge Loop menu.
Are you looking to just turn those polygroups into their own geometry? The curves you drew out only have one vertex because you drew them as one continuous line.
Can you share more exactly what you would like to do?
Paul
I was thinking more of a way to use those curves, to cut low poly meshes.
Just throwing out idea’s http://www.zbrushcentral.com/showthread.php?172671-Some-new-idea-s
Hello Ronald
You can do what you are looking for with the EdgeLoop Mask Border. All you have to do is mask what you want to cut and then click that button. ZBrush will slice around the mask, as if you were using the Slice brush.
Let me know if that helps.
Paul
… there REALLY are some treasures to find here!
Thank you, Paul, for taking that much of your time to answer questions here.
Got one myself (looked around for possible solutions before posting here):
OK, during modeling I like to have anything that means color off. No RGB, MRGB.
But, every now and then (mostly when I turn from building to smoothing) all of a sudden RGB is turned on without my doing.
Sometimes I notice, but sometimes I do not. If the color picker is set to anything just a bit lighter/darker then the color of the model, I will have to go back several steps or fill the object.
This also happens when I change brushes - so: is there a way to disable that? I just want to bother with modeling, coloring is something I do much later in the process.
Thank you…
Great interface and nice to look it. Need more for beginner…
Very useful and informative post. I am the beginner of ZBrush learner. This will help me more. Thanks.
Little thing which I recently discovered. Not R4 related but most useful for me.
To check your mask switch to flat color material. You’ll see missed parts much, much better.
Most of you probably know that - a search just turned out a link to a zbrush book - so I thought it can’t harm to post. 
Cheers,
Knacki
It’s really interesting and i think people will like it
so great!
study
Ya used this Zbrush 4R8 version. It is with extra features.
Great information! keep going!
You are so creative, person. Looking nice. Go ahed…
Was watching “ZBrush 2018 - ZBrush Guides: Make it Happen in ZBrush! with Pablo Muñoz Gómez - Episode 3”. He shown how to smooth without shrinking by +shift, click, +ctrl, -shift. Nice feature, though as far away from being intuitive as it gets.
It was something similar for polish or trim. Rewatching it atm.
So I was wondering if there is a list of these hotkey-brush-modifiers? Would have fit well in this thread imho.