Odyssey x86 X86J4105 PCIe bifurcation m.2 adapter

Hi.

Since PCIe bifurcation is available in optional BIOS version, is there any adapter to connect at least two m.2 PCIe x 1 devices to the M.2 M-Key PCie x 4 onboard slot? How can it be done? I can only find m.2 to PCIe adapter.

Best regards.