Hi. Can somebody please help me with this one. 
This is the scenario: Midi file with 8-16 tracks, playing through VST sampler. 
I need those tracks as individual audio tracks in the same project.  I know that I can "solo" in each track and record them track by track...
Is there an intelligent way to do this in bulk? I have to do this for many projects and was thinking if there is a way of creating a template that I can use to quickly render midi tracks to audio tracks?
 
Kindly let me know.
Thank you in advance!

I had a CAL script to do this at one point, but it stopped working in Sonar 8.
 
For real hardware MIDI devices I have to do it as you describe, solo'ing and recording them track by track.
 
For VST's however, you should be able to use the Freeze combined with solo'ing which is a lot quicker:
 
1. Solo a MIDI track
2. Freeze the synth track
3. Create a new audio track
4. Copy the frozen audio over to the audio track
5. Unfreeze your original synth track
... repeat for each MIDI channel.
 
Personally I now avoid having VST synths being serviced by more than one MIDI track, and prefer separate instrument tracks. Although it has a higher load on memory and CPU, it's much easier to treat them separately and also much easier to swap out different VST's for single tracks.
 
 

I've never done this but I do believe if your VST has been set with multiple outputs that when you freeze it you will have each instrument on a track. Try it. 

msmcleod thanks, but that is exactly what I want to find out, to not use solo for every track and to render them in CPU capacity rather then record them in "real time" one by one.  
 
sock monkey. Good thought, but VST only has left/right and stereo output. I should of mentioned this.
 
I usually work with audio files in Cakewalk with only a couple of midi tracks., so this is a bit new to me.
 
If this was only one or two projects it would be not too bad, but I have many...
 
 
 

Which VST is this?  Most multi channel VST's have an output for each channel. But you need to choose that option when you insert the synth. 
TTS-1 is an exception with only 4 outputs. 
Myself I have a midi "band"that involves a collection of VST's. I would not wish to use only one as each VST has something it does best. 
I use track templates to insert each member of my Band. 

sock monkey, 
Thank you. I re-read your post and found the setting of individual outputs!! 
So a template with 16 prepped audio tracks set with audio inputs for each VST output should do the trick.
 
I am using Synthfont 64BIT VST  
 
I find it better than Tx16wx because it works well with GM ruled SF2 banks and other stuff.
Also developer seems to be a decent guy. He modified VST for me to accept multi file SF2 bank by pointing VST to folder. Actually this should be another topic. I will wait until developer polishes it a little, then post it :) I am sure some folks here will find it usefull.
 
P.S. I have tried, and so far nice! No audible latency recording 16 tracks from individual stereo outputs of VST.
 

https://www.cakewalk.com/Documentation?product=SONAR%20X2&language=3&help=SoftSynths.12.html#1093389

Here’s some info that seems relevant to the OP’s question.

msmcleod
For real hardware MIDI devices I have to do it as you describe, solo'ing and recording them track by track.

Unless something has changed drastically since Sonar Platinum, so long as you take care assigning MIDI track ports and channels and have each item of hardware using a different channel/port, as far as I recall it’s possible to simultaneously record as many hardware synths or synth outputs as your interface has inputs for.

Obviously if you’re playing the synths using a controller one synth at a time then only one can be (audio) recorded at a time, but if you record the MIDI then audio tracking mutliple synths is really no different than recording several microphones at the same time.

You can easily do this if you have a multi-output synth setup with each output routed to a different track. Assuming the synth supports multiple outputs, when inserting the synth check "All Synth Outputs Stereo" or "All Synth Outputs Mono"  and "MIDI Source". This will automatically create the instrument with tracks assigned to the individual outputs.
Then select all the related synth tracks including the MIDI track and either export or bounce them. In the export dialog make sure you select "Tracks" as the source category and it will render each individual output to a file.