It is sometimes hard to decide whether a turn is to the right or left as the layout expands. Use the track rotation dial to orient the track as needed.
To design a 4-lane layout, select a layout tab and then click on "New Layout" in the File Menu. Then select the 4-lane button. The toolbox should switch to the 4-lane track pieces tab.
The only way to add a banked turn is to select a track piece on the layout, right-click, and select "Append" ot "Insert" form th pop-up menu. Select the right or left banked turn and the size of the curve - from 30 degrees to 240 degrees. This adds the leading and trailing straight transistion pieces and the number of 30 degree turn pieces to make up the curve.
To modify a banked turn, right-click on one of the curve pieces and select "Banked". Add or remove the number of turn pieces as desired. You can also add fences here (all curves and/or both straight transitions).
Banked turn pieces can be deleted individually and you can mess things up if you are not careful - some track pieces are not supposed to be connected together.
On multi-level layouts, try to start with the lowest level first and add all of those attachments before working with the higher levels.
Be careful when adding aprons and fences to 4-lane layouts so not to add one on top of the parallel track piece.
Example: adding an inside apron to a 21" radius curve piece, thus placing it on top of the 14" radius pices.
Tracks that have crossovers will automatically have the latest (end of the track list) on top. It is best to go ahead and assign these a higher elevation.
On complicated tracks with multiple elevations that overlay, use the "mult-select" menu options to select a string of track pieces and then assign the same elevation to all of them.
When multiple track pieces are selected, the Menu Bar "Item Menu" must be used to assign elevations. A right-click menu will only select the track item that is under the mouse cursor.
Caution - saving a layout with the elevation inverted will save the elevations inverted!