Select the resource you want snapped (that is, moved in
relation to another object).
Click Snap Resource to Center of Polygon
.
Move the cursor so that the center point of the desired
plane is highlighted in green.

Click on the geometry.
The item is snapped to the center of the polygon (in
this case a rectangle).

To orient the part differently, right-click on the compass
then select Edit.
The Parameters for Compass Manipulation dialog
box appears.

Rotate the compass or change the data in the box.