Adapting songs you've created in Reason to FL Studio?

I've searched for an answer using this forum's search and the googles I really really did. I can't believe no one has asked this but I have failed to find the answer or even the question. This is my first post here and I agonized over how not to sound like an idiot & gave up.



I've written a number of songs on Reason. I recently got turned onto FL Studio and I really love the sounds you can get from it but I can't figure out how to get its rewire functionality to do what I want it to do.



Every tutorial I've read regarding Reason and FL studio is about using individual instruments/FX from reason to add to a FL Studio project but nothing seems to exist about using (importing? utilizing? transmogrifying?) an existing composition created in Reason and adding new parts in FL Studio to create a complete FL Studio arrangement building off the track you created in Reason.



I've tried everything I could to make that last paragraph make sense. How do I incorporate a composition made with Reason in a FL Studio project? Or is it impossible?



If you read this far I thank you. If you respond I will thank you even more. If you have a solution then my god man/woman you will have my undying gratitude until I'm dead*.



*At which point it becomes null and void.

Adapting songs you've created in Reason to FL Studio?