Hello everyone, I created a body containing a cylinder, then I tried to divide them into three layers, where each of these three layers has a different mesh size, mainly in the z-direction, but there is an error when dividing them, here are the specifics of the error and the exact process I went through to create it, in addition to that, I have a question, is it possible for cubit to specify the size in a certain direction instead of a square.

```
reset
brick x 200 y 150 z 25
move vol 1 x 100 y 75 z -12.5
brick x 200 y 5 z 5
move volume 2 x 100 y 12.5 z -12.5
brick x 200 y 5 z 5
move vol 3 x 100 y 137.5 z -12.5
frustum z 25 radius 12.5 top 10
move vol 4 x 50 y 75 z -12.5
# SUBTRACT VOL B FROM VOL A
subtract vol 2 from vol 1
subtract vol 3 from vol 1
subtract vol 4 from vol 1
frustum z 25 radius 12.5 top 10
move vol 5 x 50 y 75 z -12.5
webcut vol all plane zplane offset -10
webcut vol all plane zplane offset -15
imprint all
merge all
volume 1 5 6 11 size 1
mesh volume 1 5 6 11
volume 7 8 9 10 size 0.5
mesh volume 7 8 9 10
```