How to start a new project in GAS linked to a Google Sheets when the first project already exists?

I need two different projects but linked to the same Google Sheets.

So for that I used to create the first project just by clicking on Extensions > Apps Script on Google Sheets and then on Legacy Editor clicking on File > New > Project on image below is Arquivo > Novo > Projeto:

But what about in the New Editor, where do I find this option?

There is no common menu on this new IDE and dont exist the option in the IDE action menu (F1).