Menus:

File Menu

• File->New
  start a new 2D shape
• File->Open
  open a saved 2d shape: Note, the file format for 2d shapes is different from all previous versions of the 2d editor, including early versions of UnrealEd 2.
• File->Save
  save the current 2D shape
• File->Save As...
  Save under a different filename
• File->Image->Open From Disk...
  place a bitmap in the background to make your shape around
• File->Image->Get From Current Texture
  Loads the currently selected texture from the etexture browser into the background. N.B. Many people report this crashing UnrealEd - I have no idea why! Report it to unrealed2@epicgames.com
• FIle->Image->Delete
  clears the image from the background
• File->Exit
  close the 2D editor window

Edit Menu

• Edit->Insert New Shape
  Inserts a new shape in the 2d window
• Edit->Split Side KEY - CTRL+I
  Splits the currently selected vertex. THe selected vertex is shown by a dark gray line.
• Edit->Delete
  Deletes the currently selected vertex
• Edit->Scale Up
  Scales the entire shape up by a factor of 50%
• Edit->Scale Down
  Scales the entire shape down by a factor of 50%
• Edit->Rotate 45
  Rotates the shape anti-clockwise about the green pivot point by 45 degrees
• Edit->Rotate 90
  Rotates as above by 90 degrees
• Edit->Flip Horizantally
  Flips the shape horizantally, Left-Right
• Edit->Flip Vertically
  Flips the shape vertically, Top-Bottom
• Edit->Grid
  Changes the size of the grid, exactly in the same way as main editor.
• Edit->Segment->Linear
  Changes the current line to a linear line, straight between 2 points
• Edit->Segment->Bezier
  Change the currently selected segment to a bezier line, great for making the tops of those archways
• Edit->Segment->Detail
  The amount of points between the 2 end points for a bezier curve, i.e. how smooth it is.

View Menu

• View->Zoom In
• View->Zoom Out
  I'm going to let you work these 2 out on your own, cause I'm that kind.

Process Menu

• Process->Sheet
  creates a flat sheet brush from the current shape
• Process->Revolve
  rotates the shape about the origin. Options for number of segments per 360 degrees, and how many to produce, e.g. if you choose 8 segments per 360 degrees and only draw 4 the shape will only be half of a full rotation. It will be rotated about the green pivot point.
• Process->Extrude
  extrudes the current shape (e.g. a square would make a cube or cuboid)
• Process->Extrude to Point
  Extrudes to a point, come on now work with me... A cube would make a square based pyramid.
• Process->Extrude to Bevel
  Extrudes to a bevel, which is basically a pyramid with a bit chopped off the top. The Depth is the height of the pyramid and the Cap Height is the height from the base. Therefore is Depth and Cap Height are the same then it is effectively Extrude to Point, and if Cap Height is 0 (which it doesn't actually allow) then it is just Create A Sheet.