I think you mean 'macro'. A macro is a set of commands that in a string that you initiate with just one command. Most common are crafting grinding macros, entertainer macros and AFK macros.
If you leave go AFK for an extended time the console will drop you out if you do not perform an action after a certain amount of time. You set up macro's in the commands screen.
A simple AFK macro (and one that I use) would be
/pause 120;
/sit;
/pause 120;
/stand;
/macro afk
This simple command string will wait 2 minutes then make you sit. Wait another 2 minutes then make you stand. It will then repeat. Using this macro makes your character perform an action every 2 minutes which means you won't drop from the console while AFK.
To stop a macro you have running you type '/dump'
Agrilok