To find out which drawings contain shapes that references a certain DB element, the Open Diagram function can be used. This is for instance available by right clicking on the element in the Schematic Explorer. In case the element only exists on a single drawing, this drawing will be opened. If it occurs on several drawings, a list will be displayed. When a drawing has been opened, the Find in Drawing Toolbar can be used to find all instances of the DB element within that drawing.