1. On the Home tab, click Model Settings.
2. Go to References > General.
3. In the Grid Line Naming section, set the initial values and the naming style.
4. Click OK.

1. In the Structure tree, right-click Architectural Grids.
2. In the context menu, select Renumber.

   A dialog box is displayed which allows you to renumber the grid line based on

   • the type (i.e. numeric, or alphanumeric) from direction (default ON) or
   • choose grid name type and direction
3. Select the parameters as required, then click OK.

   All grids in the model are renumbered in the chosen sequence.

To change the name of a single grid line or grid arc, see the following instructions.

1. Select the grid line or grid arc that you want to rename.
2. In the Properties window, expand the Name property so that User name is displayed.
3. Enter the new name as the User name.

To modify the properties of an existing architectural grid, see the following instructions.

1. In the Structure tree, click the + sign next to Architectural Grids.
2. Select the architectural grid whose name you want to change.
3. In the Properties window, modify the architectural grid's properties according to your needs.