Wave Tree Menu

Right click on a tree node to display the following context menu.

Cancel closes the context menu without selecting any item. The same result can also be achieved by clicking somewhere outside the context menu or pressing the Esc key.
Waveform displays a sub-menu of wave types. Selecting one of these types changes the selected node to the chosen wave type (same effect as choosing a wave type from the wave choice drop down).
Edit starts in place editing of the selected node. Edit is only enabled for constant nodes.
Cut removes the currently selected node and all of its sub-nodes from the tree and places it on the clipboard (same effect as the cut button).
Copy places a copy of the selected node and all of its sub-nodes on an internal clipboard (same effect as the copy button).
Paste replaces the selected node and all of its sub-nodes with the contents of the clipboard (same effect as the paste button).
Undo reverses the last change made to the wave tree (same effect as the undo button).