It never made any sense to me to break these two tools apart.
1. add a canvas
2. exit the command
3. go and calibrate the canvas
4. then position it
this is way too much mouse clicking and mouse movement and people even overlook the ability to calibrate
because it is hidden in the canvas LMB menu and not part of when important and positioning/scaling a canvas
a better UI will be to add the calibrate to the common canvas command when importing.
