Single Probe Error about bcnc

[vlachoudis]

You should provide a value in the Z field of the probe otherwise it doesn't append any value in the command. Maybe I should somehow protect it.

[crowjik]

I see now. Maybe not protecting it, maybe just rewording the message that comes up when you hover over the x, y, and z fields. Something like "X Coordinate for single probe", "Y coordinate for single probe", and "Maximum Z depth for single probe operation" ? I hadn't understood that those fields were the probe coordinates, even though maybe it should have been obvious because of their location in the gui... Although I guess that if if you clicked on the probe button without specifying at least the Z coordinate an error message that told you to specify that would be useful.

[vlachoudis]

I've added an error messagebox popping when no direction is chosen