PCIe 4.0 Unlock für MSI X470 Gaming Plus bios 7B79vAK (and AMD 400 Series in general)

hi there, i am new to this forum so .. hopefully i am doing nothing wrong.

I have a MSI X470 Gaming Plus, running on Bios 7B79vAK, AGESA 1.2.0.7. Is there any posibility to extract PCIE 4.0 Patches (or .. sort of?) from previously released Beta-Bios from other manufacturers to insert this to the latest bios with the goal of enabling PCIE 4.0 on AMD 400 Series CHipset (not only for this model of motherboard in particular)? If it isn't permitted to release patched versions, a working tutorial would do it.

Last time i modded an UEFI was for an Asrock Z77 Pro3 (Intel 3770k Platform) to make it boot from NVME-SSD. And it worked very well. So.. i am not completely new to that stuff.

Greetings and.. thank you in advance