After learning more about how src works we found an interesting and efficient solution on how to bring back Ps2 HDD and BC Ps3 runs. The main idea is stated in this pastebin here: https://pastebin.com/BDegdNrt

The general idea of this is to add both HDD and BC in a way that they are not visible without searching for these runs. Whenever you enter the KH1 page you will only see original Ps2 runs at first but by changing the filters you can change that to either show all runs (Ps2, HDD and BC) or just specific consoles.
Due to a visual bug it looks like "Any" is highlighted from the get-go but that is a src specific bug that we can't do anything about. The default is Ps2 either way.

We hope to hear your opinions on this.

- KH1 mods

Thank god there’s finally an efficient use of filters on some of these boards. I like the idea.