Recalling Atmosphere patches in Omnisphere

[Ray Lyon]

I recently acquired Omnisphere and am opening up older PT sessions which used Atmosphere. Atmosphere is no longer installed, and when the session is opened the plug in is greyed out.

I have a folder of custom Atmosphere patches I saved to be able to recall with Omnisphere. How do I get Omnisphere to recognize them?

IOW, how can I get the custom (or stock) Atmosphere patches loaded into Omnisphere on the new session file?

If not possible, is it possible to have Atmosphere and Omnisphere installed on the same computer so that prior sessions that use Atmosphere load with the correct patches?

Thanks in advance