Limit of minimum grid step in 2.5d volume

[DA523]

In 2.5d volume window, why I can not use for example (0.00001) as grid step ?
update button is greyed
..

grey.png (8.32 KiB) Viewed 1839 times

[daniel]

I believe that's probably due to the minimum value that can be input or considered by CloudCompare (to prevent numerical accuracy issues/loss)