Custom prompt on playground

Hello everyone,
I would like to add a customized prompt in the “playground” section to test the ability of chatgpt3 to perform responses on a specific task.
Is it possible to do this by selecting this custom prompt from the drop-down menu (“Load a preset”) of “playground”? If yes, how do you do it?
Thanks a lot

Top right corned is a “Save” button. With that, you can store your presets.


Thank you, very simple
have a nice day