To Define the Location Callout Grid
Define a location grid on the format file (.frm) your drawing is referencing.
1. In a Format file click File > Sheet Setup. Alternatively, on the Document tab, click Sheet Setup.The Location Grid menu opens on the menu manager.
2. Click Define.
3. Click one of the following to define:
◦ Grid Outline—Specify the grid outline by using the rubberband box or by papersize (equal to the size of the page).
◦ Grid Origin—Pick a point to indicate the grid origin. The lower right-hand corner is the default origin.
◦ Columns—Specify the amount and location of grid columns by number or pick points, and then specify the grid labels by letter, number, or custom.
◦ Rows— Specify the amount and location of grid rows by number or pick points, and then specify the grid labels by letter, number, or custom.
4. Click Done/Return.