1.Select the library you want to use (Floor Plan Shapes may be your only library option at first), and find the object you want to add.
2.In the library panel, right-click the object you want to multi-add, and select Add Multiple Objects from the speed menu.
3.In the Add Multiple Objects dialog, enter the number of objects you want to add, and click OK.
4.The objects will be added to the floor plan, where you can now arrange them as required.
