Inserting mother grids

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