Either the Left mouse button (for changing length or creating a tangent track) or the Right mouse button (for extending with a new track) is used to select the unconnected End-Point.
Any tracks that are created during the Modify command will have the following properties inherited from the first track: selected state, hidden state, scale, track gauge and Layer.
Left-Dragging the End-Point of a turnout (or other sectional track) causes a straight track to be created from the selected End-Point to the cursor.
You can change the length of a curve to form an almost complete circle if you drag the cursor almost to the other End-Point. Going past the other End-Point creates a very small curve. You cannot create a curve of greater than 360°.
Left-Dragging the End-Point of a Table Edge allows you to move the End-Point to a new position. If you move close to the End-Point of another Table Edge then the End-Point will be moved to it.
This will begin when the distance from the Curved track center to the cursor is greater than 110% of the radius. If you then move the cursor within the radius of the Curve then the Changing Track Length mode is in effect.
The Curve is shortened or lengthened as required.
If easements are enabled then an easement curve will be generated (if required) to connect the old and new tracks.
Hold down the Shift key and select the unconnected End-Point or a track. The other End-Point must be connect to another track. Now Drag the unconnected End-Point to change the Radius of the track. Straight tracks can be made into Curved tracks and vice versa.
A curved or straight track will be created, depending on the position of the second End-Point.
If easements are enabled then an easement curve will be generated (if required) to connect the old and new tracks.