Hi Chris,

I see what we are doing different!

I have been doing the same steps as you indicated, but I've been selecting the ch2bet template instead of ch2better!
My previous process (on the Oct 2016 MRIcron version):
1) File/open ch2bet
2) choose window/multislice
3) view/overslice -20%
4) ensure view/orthagonal view is unchecked
5) view/orient/axial =selected
6) view/slices - I get a pop up warning and am not able to adjust the slices (although 7 are showing): "MRIcron access violation. Press ignore and risk data corruption. Press abort to kill the program."
However, when I use ch2better in step 1 it works and I do not get the warning. So... out of years of habit of using ch2bet I didn't think to try ch2better...
As an aside, when I do the above steps with the 2018 pre-release you provided and select ch2bet as a template, I do not get the warning, but I still only get the 2 squished slices and am unable to change this.

Again, many thanks for providing MRIcron and thank you for your help with this!