PGM
lfm
I use MetapluginSynth for this. http://ddmf.eu
Load any number of synths - draw your connections i graphical interface - done.
Since you also can use the midi output in MPS - you can chain single synths rigged like that.
Just select input from track with MPS on.
But you can load any number of synths and other stuff in MPS .
EXCELLENT! do you put it on each audio track, and save it as template?
I just put common combinations of synths in an instance of Metaplugin on a track - and save as a track template.
I use some VST midi plugins like those free from InsertPizHere as combinations with synths too, like brass section, string session etc and having midi split among those i various ways.
And I activate 2xoversampling in Metaplugin on some template where sound quality increases by that - meaning synth internally in Metaplugin running 96k if project run on 48k - without you having to run full project in higher samplerate.
Even loading every VST synth you've got into an MPS instance alone, and also routing midi in to midi out doing that - you get the benefit to combine and layer these synths in Sonar by adding them on another track, and taking midi input from output of the other track. Save as track template - and resuse and load the preset of each synth that you want for that instance.
I found a while back that many synths like Dimension Pro have a midi out, but you never get anything on it - so it's fake really. So loading DP inside Metaplugin, and routing midi in to midi out - you suddenly have the ability to layer synths, one by one as you please, but on different tracks all taking midi from one track.
Or make full sets of synths in combinations inside MPS with arpeggiators on some, and different patterns on some of them etc. You can get really interesting patterns from a single midi clip. A world of creativity open up, really.