  *** Sequence and Content of Interactive Online-Lab Frames ***

  Command          Script-name     Content
  -------          -----------     -------
  None             lab-start	   Overview
  Add Line         lab-arc90       Curves with 90-Degree Arc Locks
  Add Line         lab-arc45       Curves with 45-Degree Arc Locks
  Add Line         lab-arcoff      Curves with No Arc Lock Set
  Edit Vertex      lab-evtx        Editing Curves
  Slide            lab-slide       Sliding Curves
  Add Pin          lab-apin-rect   Adding Pins in Rectangular Mode
  Add Pin          lab-apin-polar  Adding Pins in Polar Mode
  Copy             lab-copy-rect   Copying Elements in Rectangular Mode
  Copy             lab-copy-polar  Copying Elements in Polar Mode
  Spin             lab-spin-one    Spinning a Single Element
  Spin             lab-spin-many1  Spinning a Group/Window of Components
  Spin             lab-spin-many2  Spinning a Window of Reference Designators
  Addarc           lab-addarc      Adding Arcs by Polar Means
  Change           lab-change      Changing Text Justification and Apply Boxes
  Delete Subclass  lab-delsc       Deleting Subclasses
  Define Grid      lab-grid        Setting Grid Offsets
  All              lab-sample      Sample Board to Exercise New Features On

  To begin the lab at the first frame, enter <F1> ...

  To begin at a particular frame;  open an empty drawing, then enter "replay script-name" where script-name is the 'Script-name' of a lab from the above list ... 
