Start slow.
  • Find a program of your choice and configure nothing but the key copy. Try not to get overwhelmed with the plethora of options just yet.
  • Look up some Multiboxing macros. The simplest 2 macros you will need are:
-follow macro-
/follow YOURMAINSNAME

-attack macro-
/assist YOURMAINSNAME
/cast SPELL

Later you can play with focus macros, and once you are comfortable with multiboxing, move to much more complex systems like FTL (Focus-less, target-less, leader-less)