Cthulhu VST

It is very convoluted to set up the first time Sadicus. I can talk you through the steps, then you can save it as a track template and it will be quick to load next time.
 
1. From the insert menu choose soft synth > vst2 > cthulhu
In the dialogue box that pops up tick the following:  Midi source, synth track folder, first synth audio out, enable midi output, synth property page, recall assignable controls, then click OK
 
2. Next Insert whatever soft synth you would like cthulhu to play.  I'll use True pianos Cakewalk as an example, but you can use any:: Insert > Soft synth > VST2 > True pianos Cakewalk.
In the dialogue box that pops up tick he following: Midi source, Synth track folder, First synth audio output, Synth property page, recall assignable controllers. Enable midi out does not need to be ticked. Now click OK
 
You now have 2 folders, both containing a midi track and a synth track.
 
3. In the synth folder (True pianos in this example), select the midi track. From the input drop down menu, choose your keyboard input. Now play some notes to make sure you have sound. Now from the same dropdown menu, change the input to cthulhu 1 > midi omni. You have now routed the output if Cthulhu to your soft synth.
 
4. THIS IS IMPORTANT: MAKE SURE THAT THE INPUT ECHO BUTTON IS ACTIVE (BLUE) ON BOTH THE MIDI TRACK IN THE SYNTH FOLDER, AND THE MIDI TRACK IN THE Cthulhu folder. You are now set up and ready to play!
 
5.  Select the midi track in the Cthulhu folder. Make sure it's input is set to your keyboard in midi omni mode using the drop down input menu.
 
6. If the Cthulhu VST property page isn't already open,  click on It's synth ytack icon to open it. You will see on the page a drop down entitled Chord Presets. Click on it and choose any preset. Now play a single  note on the keyboard (still with the midi track in the Cthulhu folder selected, but with the Input Echo button acivated on both midi tracks) You should here the chosen arpeggio play. Note hat you will also hear a tone generated by Chulhu. This is turned off using the speaker icon in it's vst property page.
 
Now that you have it working, select both folders and the tracks using control click, right click on he blue higjlighted section of any of the selected tracks and choose "save as track template" from the dropdown menu and give it any name you like.
 
Next time you want to load it, just right click in empty space below your last track and choose 'insert from track template', then he name you saved. This will load both the soft synth and Cthulhu and set up all of he inputs and outputs for you. You just click in he Cthulhu midi track and play away!
 
I hope this helps. It is a bit of a hassle to set up, but not so complex once you get your head around it. It is very easy once you have the  tempate saved.
 
If you can't get it working let me know and I can email you a project with it all set up. Then you can open the project and save the track template to get you started.
 
Good luck!