What about custom "testcards"?
in MAIN
The built-in testcard is good to map a building if you are on site.
While it is a bit cold now outside, it would be good if I could load my own picture here,
map all physical corners to Millumin's surfaces and do only the final adjustments on site.
Just an idea.
Comments
You can simply do this from the dashboard : use a background layer with your testcard picture.
If you want to create surfaces from the dashboard, be sure to read this tutorial.
If you need is more specific, don't hesitate to submit an idea on Uservoice (it helps us to keep track of user requests, and see their popularity).
Best. Philippe