To place an object within a level
Do either of the following in the Asset Browser to find and select the object unit file:
Navigate directly to the Content folder of your project and select a file.
Search for the object file name using the Asset Browser Search field.
Do either of the following to place an instance of the object in the level:
Drag the object file from the Asset Browser into the Level Editor.
Select the Place Tool in the main Toolbar, then click to place the object.
As you hover in the level when dragging the object file, or with the Placement tool active, a wireframe version of the unit displays with your cursor, letting you preview how the object will appear.
Tips:
To view the asset before you place it, open the Asset Preview window (Window > Asset Preview if it's not already displayed).
Shift + drag after you place a unit to continue placing more of the same.