export different sheets to different files

Hello,

I created a grasshopper script that generates multiple signs from an excel file and nests them on multiple sheets.

now I need to export each sheet to its own dxf file with the different layers in tact.

I have experimented with TTtoolbox, but no layers

And downloaded multiple python scripts from this website, which work for the layers.

But I can't figure out the best way to export each sheet to a different layer

how do I select the curves on a specific sheet?

below screenshot of the rhino result (first colom is back en front in same place, next to that i splited out front and back).

I see 2 possible solutions.

1/ a way to select items enclosed in a curve (sheet boundary), so I bake the result first and then export it

2/ a way to insert specific curves from grasshopper in the python script, and then use hoopsnake to cycle all the sheets

I hope I'm making myself clear...