Edit Menu

The operations in this menu have an effect on the selected objects. You can select an object by clicking on it with the left mouse button. Multiple selection is possible dragging a rectangular area while holding down the left mouse button or by holding the Shift-key and clicking on objects.

Erase Selected:

This option will remove the currently selected nodes and edges from the view. This operation has no effect on the database.

Selection:

With this submenu, you can either select all objects, all nodes or all edges in the current frame. Furthermore, you can clear your current selection.