What is the difference between SCALE1...5?
Not version-specific
Tekla Structures
Environment
Not environment-specific
SCALE1, SCALE2, SCALE3, SCALE4, and SCALE5 are value fields that you can use in your drawing templates. SCALE1 shows the biggest view scale in the current drawing, SCALE2 shows the second biggest view scale, and so on. If you have more than 5 different view scales, only the 5 biggest can be displayed in your template. If you have less than 5 different view scales, the rest of these value fields will not have any value.
For example, your main view has the view scale 1:20, your detail views have the view scale 1:5, and your section views have the view scale 1:10. Now SCALE1 = "1:5" (biggest), SCALE2 = "1:10" (second biggest), SCALE3 = "1:20" (third biggest), SCALE4 = "" (empty), and SCALE5 = "" (empty).
Note that the template contents are not updated when you modify a view scale. Templates are only updated during certain operations, for example when you reopen the drawing, or run the Arrange Drawing Views command.