I just use dism to export a single WIM into the AIO WIM but this link shows a few ways to do it. Once you have the updated WIM ready to go you can create the AIO. Or for the relevent lines with original ones commented out. You could also append the Jan 2020 final cumulative after applying the November 2019 one Jason covers. I just modified his script to change the KB numbers. While he wrote it in November of 2019 there are a few newer patches to apply. I started down the road of a simple bat file to inject updates via DISM but Jason's script is way more intuitive and powerful. He covers how to create a slipstreamed WIM that has the majority of updates injected to save a ton of time and be safer. First is to update it, which Jason Sandys covers in great detail and all credit to him.
