Custom sprite tileset change

Hi everyone!
My question is about bro sprites on this site, namely these:
https://www.smwcentral.net/?p=section&a=details&id=16730
https://www.smwcentral.net/?p=section&a=details&id=16745
https://www.smwcentral.net/?p=section&a=details&id=16695
https://www.smwcentral.net/?p=section&a=details&id=16837
https://www.smwcentral.net/?p=section&a=details&id=16747
I'd love to use these sprites in my hack, but the thing is that they use SP4, but I'd prefer them to use SP3 to overwrite chuck graphics mainly. How do I do that? I don't know much about ASM.

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Changing which tiles a sprite uses doesn't require ASM knowledge, actually, beyond knowing that you can edit the file content.

In case of Sonikku's Koopa Brothers, all of the tiles are defined below .tilemap. The numbers on that table map to the tiles in the 8x8 editor (more specifically, to page 5 but you can use page 4 if you disable "use secondary graphics page" in the CFG/JSON file). SP3 is the top half page 5 meaning if you want to move the graphics to SP3, you just have to use the values $00-$7F instead of $80-$FF.