The Editor popup menu

Right-clicking on the draw area will bring up a popup menu with several choices that are listed here from top to bottom:

Save as a JPG file
Saves an image of the editor view to file in jpeg format.
Save as a PNG file
Saves the image in png format.
Upload a module
Lets you choose a file containing the XML representation of an NCES module. The module is then loaded and added in the editor to the current model. The module will be added to the NCES that was under the cursor when the popup menu was opened.
Copy
If the popup menu was opened above an NCES element that can be copied then this menu item is enabled. Any NCES elements except individual arcs can be copied. Selecting the menu item copies the element so that it can be pasted to the draw area later with the Paste option.
Paste
This menu item is enabled if an NCES element has been copied with the Copy option. Selecting it pastes the copy to the location where the popup menu was opened if it is a valid location for the element in question. The copy might not be an exact copy of the copied element: for example the label may need to be changed.
Add nail to arc
This menu item adds a new draggable point to the arc that the popup menu was opened on. The menu item is disabled if the popup menu was not opened on an arc.
Remove nail
This menu item removes a draggable point from the arc. By removing all of the draggable points the arc can be made a straight line between its source and destination elements. Note that this menu item is enabled only if the popup menu was opened on a draggable point.

Araw area resize menu