If one mark is created for the x-axis translation, the other one should be forced to be in the same column. And it should be impossible to create a mark left from the first column start.
Reason
Better error messages.
Current behaviour
The x-axis translation fails and the final exported result is never translated (without giving any justification to the user)
Summary
If one mark is created for the x-axis translation, the other one should be forced to be in the same column. And it should be impossible to create a mark left from the first column start.
Reason
Better error messages.
Current behaviour
The x-axis translation fails and the final exported result is never translated (without giving any justification to the user)
