All my settings migrated from Producer to Platinum. After the install a pop asked me if I wanted to transfer settings so I said yes.  All MASTER.INS stuff was there, instrument definitions, in/out friendly names, the lot. Even Pantheon reverb was there. There was only one thing I had to change: the default data directory for projects was C: and I have them on D:
 

Kalle Rantaaho
I assume it's possible still, as it's always been, to have several versions of Sonar on your computer.

Absolutely!

bapu

microapp
Platinum sounds exactly like X3E.

Impossible.
Simply impossible.
They are spelled and said differently.

Thanks Bapu,
Now I will have the Johnny Mathis tune in my head the rest of the day.

There is another post where the OP states Platinum sounds 50% better.
 

microapp
There is another post where the OP states Platinum sounds 50% better.
 

It's a longer word. Maybe he likes to hear himself talk?