This should save you quite a lot of time but I found that in real life a complex model or scene can easily have several tens of texture sets, maybe even a hundred or so and multiplied by 5 textures in a typical PBR Metal Rough export (BaseCOlor, Metallic, Height, Normal and Roughness) this results in hundreds of textures and a very cluttered file selector.
Now becuase you only need to select one of them to load the whole set, I made a small change the set the default filter to
*Color* so that the file selector will only show the base color files (which happen to be the most distinct ones when you are looking at thumbnails). This reduces the list of files greatly, making it easier to pick the texture set you need (because as sais, clicking just BaseColor will load the others just the same). You can of course always uncheck the filter icon (at the top of the file selector) if necessary.
Code availabilityThe update is available from GitHub
Check the previous article for info on how to use the add-on. It includes a small tutorial video.