Help with Filters

I have a lot of folders that are structured in this heirarchy:
Summer 2023 July/Shark Reef/Sheltered/Slope/T1/photos I am interested in

Within each season (first folder) there are multiple areas (second folder) and within each area are two folders (Sheltered and Exposed) which have a further two folders inside them (Slope or Crest) which have three folders (T1, T2, T3) that have photos I am interested in. I have other photos within various of these subfolders, but I am only interested in renaming the files inside the T1, T2, T3 folders.

Within each folder, I want to add sequential numbers in front of the original file name. Does anyone know if there is a way to do this?

I was told that I can set filters so Advanced Renamer only looks to change the files in T1, T2, T3 folders within that heirarchy, but I'm not sure how to set it so the numbers are sequential in each folder (typically, this will be 01-50 for each T1, T2, T3 folder).

I could do this manually, but this will take a very long time to do. Any suggestions or tips anyone has would be very much appreciated and helpful! :)

Kind wishes,
Matt