Node

Spline editing actions are done through the items menu, right click in your scene view to open the items menu.

Add

Forks

• if spline plus has zero branches then a new branch is created automatically and a new node is added to the newly created branch at the mouse position click,
• if both branch forks are welded then the action of adding a new node is aborted,
• if both branch forks are unwelded, then the bridge with the newly created node is established with the branch fork with less distance to the mouse position click,
  
• if the branch has only one unwelded fork then the connection is established with the unwelded fork,
  
  

Middle

Hold "Shift key" on the keyboard , you will get a “yellow” sphere traveling along the selected branch based on mouse position, once you are on the desirable position, perform a mouse click to add your node.

Delete

To delete a node there are two methods,
- First one is by using the shortcut key "Back space" while selecting the node you want to delete.
- Second is through items menu

Hide/Unhide handles

Hide/Unhide nodes handles this can be done through Node=>Hide/Unhide handles or using the shortcut key "H"

Chamfer

Chamfer regular and shared nodes, once this action is triggered you get a message box to control your smooth radius,

Flip Handles

This flips the handles position of the selected node, this is very useful when drawing your spline, it helps you get the desirable spline shape you want.