The last keyword of this type adds an atom selection menu, the selections are passed to the plugin via atom descriptors. See ObjectSelectionMenu above for an example.

The jth atom descriptor in the ith selection window can be accessed as yasara.selection[i].atom[j] (see below).

Example:

MainMenu: View
  PullDownMenu: Color
    PopUpMenu: by force
      AtomSelectionMenu: Select atoms to color by force
      Request: ColorByForce