+* `tab 'filename'`: opens the given file in a new tab.
+
+* `tabmove '[-+]?n'`: Moves the active tab to another slot. `n` is an integer.
+ If `n` is prefixed with `-` or `+`, then it represents a relative position
+ (e.g. `tabmove +2` moves the tab to the right by `2`). If `n` has no prefix,
+ it represents an absolute position (e.g. `tabmove 2` moves the tab to slot `2`).
+
+* `tabswitch 'tab'`: This command will switch to the specified tab. The `tab`
+ can either be a tab number, or a name of a tab.
+
+* `textfilter 'sh-command'`: filters the current selection through a shell
+ command as standard input and replaces the selection with the stdout of
+ the shell command. For example, to sort a list of numbers, first select
+ them, and then execute `> textfilter sort -n`.
+
+* `log`: opens a log of all messages and debug statements.