[pluggo] one input/several outputs plug-in in Logic Pro 8?

Hello,

I am working on a plug-ins to spatialize sounds in Logic Pro 8.

So far if I want to use a mono sound and sptialialize it over eight  
outputs I need to built a 8-inputs/8-outputs plug-in and I use only  
one input inside. Then I put my mono file on a 7.1 surround track and  
I insert the plug-in.

However, I wonder if it is possible to use a true 1-input/8-outputs  
plug-in with Logic Pro 8? How?

Roald Baudoux