Logitech G G403 Wireless - Mouse Function Assignments; Button Assignment Types

In this window, you can assign a:
 Keystroke — Assign a single key press, or a key press with modifiers.
 Multi Key — Assign a "macro'd" series of keystrokes. (NOTE: You can
set up these macros to function both with and without recorded time
delays.)
 Text Block — Create a block of text to be typed out when the key is
pressed (either with or without Unicode support).
 Mouse Functions — Assign a button on your mouse to use any of the
available mouse button functions.
 Media — Set a mouse button to function like a media key you'd typically
find on a keyboard.
 Hotkeys — Use a pre-defined keystroke command.