How to use only 1 savestate (3ds)

Hi, I am using Nes games. Everytime I make a new savestate it is created in a new slot. Going in the savestate directory there are hundreds of savestates and I don’t know what is the last one. How can I use only one slot and overwrite it all times?

I think you need to go to settings > saving and disable ‘save state auto index’.

It worked, thanks!