Setting Scales for Drawing Sheets
You can change the scale of a drawing sheet by selecting a scale from a predefined list or specifying a custom scale.
To change the scale of an existing drawing sheet:
Setting Custom Scales for Drawing Sheets
The scale list on the status bar includes an option to specify a custom scale for drawing sheets.
To specify custom scales for drawing sheets:
You can also right-click the sheet and select Properties, then edit the values in Scale