Mpd 16

I have a setup I need help with Keyboard midi in to midi out of PC
midi out to midi in of PC all my other modules are daisy chained from the midi thru of the keyboard controller.I just purchased a mpd 16 which only
has a midi out and a usb connection. how can I trigger sounds from my standalone sampler and my PC ?

just daisy chain all of your midi devices like you normally do except for the mpd16. instead use the mpd16 via usb to connect to computer.
or
if you want to use the mpd16 to make beats using your modules put it at the start of the midi daisy chain.

I only have midi out if mpd is 1st in chain how would I hook my keyboard controller,my PC,my 3 modules so everything can be triggered and recorded at the same time.

you would use the mpd as usb and only to trigger midi inside the computer. and run your chain like normal.

Thank you very much for all the help everything worked excellent