Emacs style shortcuts

Hi, is it possible to have emacs style hot key triggers ie. double key combo ?

ie. would like to have alt-command a and then a separate key of say i to start intellij, m for mail etc

Thanks

See the wiki FAQ for this.

There are a number of ways to do it, as long as the first key is always swallowed and never ignored or re-simulated.

Thanks for the link.