When connecting multiple MIDI devices to my computer, I'm a little confused regarding whether there is a "central point of control" - is the idea that either a piece of equipment has custom Windows software installed which will allow MIDI signals sent with a tailored windows interface for that device - and if not - you're on your own with coming up for a central piece of software to control it ? E.g. let's say I set my Presonus MIDI out and connect it to each MIDI effects box. What software do I use to send the MIDI patch and control changes ? If the vendor has written custom software - I imagine I use that. But if not - then what would you guys suggest ? Is there software that will let me configure it using patch names from the particular device I'm controlling ?