Imported MIDI drum track shows as non-drum

[StuartA]

Hi, I imported some MIDI drum loops I downloaded. However they show up on the software as normal instrument tracks rather than drum tracks. I can set the instrument up as drums and they play fine, but I the piano roll i get the piano keyboard rather than a drum map.

I've tried copy and pasting the midi data into a drum track but the software won't allow it. 

Any suggestions or help wil be appreciated. 

Thanks