Dimension Pro - assigning programs to midi tracks

I end up inserting multiple synths (one for each instrument). I know I must be missing something.

Not really. Dimension Pro doesn't respond to program change messages. Multiple instances is the way that most people go with this.

If you want to channelize the four Elements, go to the Options icon to the left of DIMENSION PRO, and Set Multitimbral. With most of the installed programs, you'll have to "fill" the remaining Elements on your own. If you're interested, I have an easy way to do this from the supplied presets.

I am always interested to learn more.

Here's the basic explanation. Let me know if anything remains unclear.

So this mean each of the four elements can be assigned to a different midi track? I have Music Creator 3. Do you have any idea how to assign an element to a track?

No, not a track. The audio from Dimension Pro will be 'sub-mixed' to a single stereo pair of outputs. What you can do is split the Elements under control of four MIDI channels. Look for the Options icon in the group of four (it's probably a screwdriver pic ... it could be a syringe ...). Check "Set Program to Multitimbral". That option gets saved when you save a program file.

Now, Element 1 will process notes transmitted over MIDI Channel 1. E2 is triggered by MIDI Channel 2, E3 by ch.3, and E4 by ch.4. Your clips can contain all four 'parts' within a single file. Sorry, I'm not familiar with exactly how to set this up in Music Creator 3.