Is it possible to add one new scale - 1" = 5'?
Hi Mila. Is this a scale ratio that is common in the projects you estimate? In the meantime, you can manually set the scale by entering a known dimension and clicking the two points that represent that distance. This is often the most consistently reliable method of setting the page scale.
I will submit this as a request for a new feature to the dev team. You will be notified as the status of your request changes.