GPT Playground Prompt Studio is a new functionality added, where you can create your prompts and test them. After testing the prompts, you can save your favorite ones to the list and use them later adding in templates.
In order to start experimenting, open the GPT Playground section of the portal. You will see two sections: Prompts list and Create prompts tabs.
Prompts list
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While on the Prompts list, you can select one of the preset prompts created for you.
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You have the option to Edit or Delete the prompts created. On the right under the Action select Edit or Delete from the list appearing when you click on the sign with three dots 
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Create prompt
In order to create new prompts, you can use a structure similar to the one used in the preset prompts.
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