Multiple midi clips to one track

I've changed some drums using melodyne from audio to midi and exported them to a folder on my hard drive. I now have around 6 separate midi clips for the kick, snare, HH and toms. I want to make these into one clip to its a full drum kit arrangement so I can play them in Steven Slate drums, how do I import the separate clips in to one instrument track please

Thanks inadvance Raoul