Drawing Scale function automatically creates a custom property for drawing with base view scale (e.g. 1:2).
Enabling and configuring Drawing Scale:
Drawing Scale functions configuration can be found from Navigator Settings:
Active function enables or disables Drawing Scale.
Name of scale iProperty function is for naming the custom iProperty for Scale that will be created to a drawing file:
NOTE! THIS CUSTOM IPROPERTY FOR SCALE IS CREATED IN THE FIRST SAVE!