To use the macro in Keyran in the Stalcraft game, first of all select the activation button. After that, enter the desired text, for example, «test message!!», and copy it. The macro will automatically send this message, each time deleting one character from the end after the first sending. As a result, you will see the following options: «message test!!», then «message test!», and finally «message test». The code contains comments explaining the main sections and their functions.