Snapping
If this box is checked, the symbols you place are snapped to the nearest existing item in the drawing when clicking with the left button. If Snapping is not checked, furniture items you place are rounded, but not snapped to existing items except when right-clicking.
3D
The status bar placement options help you determine how symbols are placed in the Z plane. Click the button next to a placement mode to select it.
Norm. Used for placing symbols on the floor of your model (without a Z Height). If default library elevation settings are in place for specific furniture items, they are placed with these defaults rather than on the floor.
Surf Use the 3D surface placement mode when you wish to place symbols on top of one another: for example, when you are placing desktop items. If you try to place a phone on top of a desk without first selecting 3D Surface, the phone is placed on the floor instead of on the desk. You may also set a specific Z Height, but 3D Surface is useful because you need not know the exact height of the desk to place a phone on it.
ZHt Use the Z Height mode to set symbols a specific distance above the floor of your model. Use the arrows to the right of the box to change the value, or enter a value directly.
When you are finished placing symbols with Z height, remember to return to Normal placement mode.
Other icons concern installed databases or on CD-ROM. Please contact Support for more details.