I want to call my recent beat through my new song page and record on top of it.

Example, just like the song page and the mastering page.

Sometimes my client beat is in fruity loops  and I call the beat from there to studio one and record on top of it. In that case I run FL Studio as slave or vst to in studio one and open my beat project in it, so I can go back and make changes anytime or even add more instruments.

But I want  studio one to the both job. Because I do all my project in studio one.