Your slave is going to need to follow you at some point unless you never plan on leaving the starting zone or you plan to manually move each toon individually, which really is a total waste of time.

There is no automatic facing, it will require some sort of input somewhere. Be it follow, interact with target, manual movement or something like a focus lens.

Any program can pass keys to multiple instances. Start here for breakdowns on what you will need to start multiboxing, including available programs and tutorials.