Razer LACHESIS Master Manual page 12

MANAGE MACROS TAB
A macro is a sequence of keystrokes executed in a particular order and timing. It allows you to execute a
chain of commands, with the press of just one button for faster response in your games. Macros can be
up to eight characters in length, and other tasks such as media functions can be assigned.
In the Manage Macros tab, you can record as many macros as you want on your computer.