Hi Sasha,
On Mon, Oct 01, 2018 at 07:02:26PM -0700, Sasha Rayshubskiy wrote:
>Is it possible to toggle (or configure once) between physical and voxel
>coordinates when viewing and manipulating XYZ in the main display 
>window?
Which coordinate references would you want to be affected by switching 
between physical and voxel space? The X/Y/Z references in the top 
toolbar? If so, this is currently not possible. Each stack viewer (a 
window displaying image data in CATMAID) has a primary stack, which 
defines the space the toolbar operates in when it is active.
For what it's worth: In the lower right corner you should see the 
current view center coordinate in both stack space (px) and project 
space (physical).
Best,
Tom