### 20.5.1.2 Edit menu

Undo
  Undo last change to current window (max 1000 changes)
Redo
  Redo last undone change to current window

Cut
  Copy selection into system-wide clipboard; then delete selection
Copy
  Copy selection into system-wide clipboard
Paste
  Insert system-wide clipboard into window
Select All
  Select the entire contents of the edit buffer

Find...
  Open a search dialog box with many options
Find again
  Repeat last search
Find selection
  Search for the string in the selection
Find in Files...
  Open a search dialog box for searching files
Replace...
  Open a search-and-replace dialog box
Go to line
  Ask for a line number and show that line

Indent region
  Shift selected lines right 4 spaces
Dedent region
  Shift selected lines left 4 spaces
Comment out region
  Insert ## in front of selected lines
Uncomment region
  Remove leading # or ## from selected lines
Tabify region
  Turns leading stretches of spaces into tabs
Untabify region
  Turn all tabs into the right number of spaces
Expand word
  Expand the word you have typed to match another word in the same buffer; repeat to get a different expansion
Format Paragraph
  Reformat the current blank-line-separated paragraph

Import module
  Import or reload the current module
Run script
  Execute the current file in the __main__ namespace