Inserting mother grids
  | 
             Tool  | 
          
             Tool set  | 
        
| 
             Mother Grid 
  | 
          
             Rigging  | 
        
When a venue’s rigging points are insufficient, a mother grid can be added. Mother grids can support the horizontal forces applied by bridles. Each mother grid consists of one truss and three hoists. The Mother Grid tool inserts a mother grid on house rigging points or structural members (see Creating structural members).
![]()
| 
             Mode  | 
          
             Description  | 
        
| 
             Auto Insertion 
  | 
          
             Inserts a mother grid using Auto Connect technology to highlight valid attachment points  | 
        
| 
             Click Insertion 
  | 
          
             Inserts a mother grid with three clicks to identify the start point, end point, and connection point of the truss system  | 
        
| 
             Symbol  | 
          
             Opens a Resource Selector to select the truss symbol for the mother grid; double-click a resource to active it  | 
        
| 
             Trim Height  | 
          
             When Click Insertion is selected in Top/Plan view, enter the distance from the bottom of the mother grid to the floor  | 
        
| 
             Preferences 
  | 
          
             Opens the Select Hoist dialog box, to select the hoist symbol to use in the mother grid  | 
        
 

