A check box to disable soft limits on the Z axis. This would be a very popular feature with those who have a powered Z axis.
As it is, after powering up the controller, the Z axis can not be lowered as it will already be at zero.
Work arounds can be used, such as utilising U axis for the table, but this should be an easy fix.
And while we are at it, a check box to disable Y axis soft limits would also be a real boon for when working with a rotary axis. Soft limits on the rotary are just a nuisance.
Here's hoping.

Greolt