Keyboard shortcut
sdlBasic editor, as SciTE, uses the default key bindings defined in Scintilla, so keyboard commands mostly follow common Windows and GTK+ conventions. All move keys (arrows, page up/down, home and end) allows to extend or reduce the stream selection when holding the Shift key, and the rectangular selection when holding the Shift and Alt keys. Some keys may not be available with some national keyboards or because they are taken by the system such as by a window manager on GTK+. The user.shortcuts setting may be used to assign a key to a function. Note that Home key behaviour is changed by the vc.home.key option. Keyboard equivalents of menu commands are listed in the menus. Some less common commands with no menu equivalent are:

Magnify text size. | Ctrl+Keypad+
Reduce text size. | Ctrl+Keypad-
Restore text size to normal. | Ctrl+Keypad/
Cycle through recent files. | Ctrl+Tab
Indent block. | Tab
Dedent block. | Shift+Tab
Delete to start of word. | Ctrl+BackSpace
Delete to end of word. | Ctrl+Delete
Delete to start of line. | Ctrl+Shift+BackSpace
Delete to end of line. | Ctrl+Shift+Delete
Go to start of document. | Ctrl+Home
Extend selection to start of document. | Ctrl+Shift+Home
Go to start of display line. | Alt+Home
Extend selection to start of display line. | Alt+Shift+Home
Go to end of document. | Ctrl+End
Extend selection to end of document. | Ctrl+Shift+End
Go to end of display line. | Alt+End
Extend selection to end of display line. | Alt+Shift+End
Expand or contract a fold point. | Ctrl+Keypad*
Create or delete a bookmark. | Ctrl+F2
Go to next bookmark. | F2
Select to next bookmark. | Alt+F2
Find selection. | Ctrl+F3
Find selection backwards. | Ctrl+Shift+F3
Scroll up. | Ctrl+Up
Scroll down. | Ctrl+Down
Line cut. | Ctrl+L
Line copy. | Ctrl+Shift+T
Line delete. | Ctrl+Shift+L
Line transpose with previous. | Ctrl+T
Line duplicate. | Ctrl+D
Previous paragraph. Shift extends selection. | Ctrl+[
Next paragraph. Shift extends selection. | Ctrl+]
Previous word. Shift extends selection. | Ctrl+Left
Next word. Shift extends selection. | Ctrl+Right
Previous word part. Shift extends selection | Ctrl+/
Next word part. Shift extends selection. | Ctrl+\