How to Convert VECTOR pattern to editable vector objects?

Presumably the vector pattern is constructed of open curves? If so then,

Take a copy of all objects (to a new layer perhaps)

Remove all fills and make outlines black

Convert all objects to bitmap using a high resolution, at least 300dpi.

Change the bitmap mode to 1 bit monochrome

Use PowerTrace Outline mode to trace the object edges. Settings should be high detail and little smoothing

Back in Draw you will now have fillable objects.

Personally I use Trace v12 for this job as its very fast, has no upper pixel limit, and is probably more accurate producing fewer nodes.

Post a file here for an example of how its done.