How can I use Daz3 AND Daz 4 studio?

Hi all,

I made a big investment in my daz3 environment and want to use the scenes and characters created there. I recently upgraded to Daz4 and I can't access my Daz 3 anymore. I already bought a new pic and spent $100s on Daz 4. Any thoughts on either how I can import my old stuff or minimally run both studios at the same time? Thank you!!