You will see a representation of the bonding/anti-bonding
sp3 part.

* 1st run fplo

* then
    xfplo =.xstr

* have a look at all tabs

* have a look at settings
  - open the WF/gridplot dialog (hotkey w)
  - go to tab "File"
  - hit the Browse button and load
     grid_resolveddens.er002.ewdens.g001 (anti-bonding)

* use MainWindow::View::Zoom/Rotate hotkeys to position/orient
  the picture