I cant answer your problems specifically because I dont own PT or a Motif. However; I'm 100% sure that yes, you can record multiple tracks of midi in PT and yes, your Motif can play back at least 16 channels of midi if not 32. You are just going to have to dig into your manuals to see how to set this up in your particular instance.

HEy Erik thanks for ur info Helped me out a lot i will have to get
more in my motif to solve this problem. if any body knows how to do this it would really be great for me to kno.

Each midi track needs to be assigned a midi channel in PT. Each instrument on the Motif also needs to be assigned corresponding midi channels.
If that doesn't help. A bit more info might.

This might help

http://www.tweakheadz.com/how_to_get_started_with_midi.html

Hey, the motif reads that it has "The sequencer section can handle up to 226,000 notes in 16 tracks."

With on board sequencing, let the motif remember the notes. It can also do 128 note polyphony! Lotta stuff there!

Brien

thanks guys really helped me out,