Undo: Reverts the last action.
Redo: Redoes the previously undone action.
Cut: Cuts the selection and puts it on the clipboard.
Copy: Copies the selection and puts it on the clipboard.
Paste: Inserts clipboard contents.
Select All: Selects the entire active document.
Find and Replace:Finds or Replaces the specified text.
Find Next: Finds or Replaces the next occurance of the last search string.
Usages:
Finds all the usages of the word at the cursor.
For more info click here.
Marks:
Shown only if you have pressed the "Mark All" button in the "Find & Replace" dialog.
Allows you to move around the marks.
Toggle Bookmarks:
Sets or Clears a bookmark on the current line.
Go to Bookmark:
Goes to specified bookmark.
Clear All Bookmarks: Clears all specified bookmarks.
Go to line: Goes to specified line in the active document.
Increase indent: Increases text indent.
Decrease indent: Decreases text indent.
Change character case:
Converts selected character case.
Copy Highlighted: Copies code in rich text format with syntax highlighting.
Match Brace: Searching for matching brace.
To get this action, place cursor before these braces: <,>,[,],{,},(,).
Select Brace: Searching for matching brace and select text.
Preferences: Sets the program preferences.