I requested for this feature for a while now in the Airtable Community:

I’ve seen a lot of topics and/or feature requests to hide tables within a base. I want that as well. But on top of that, I don’t see topics here about hiding view items that you’ve actually created, not just those created and made personal view by other users. I’m not referring to how to toggle on and off the Views pane. I mean the different views that you’ve created, whether they be Grid, Form, Calendar, Gallery or Kanban, can they be hidden to declutter the Views pane, or better yet, maybe have the ability to group them in folders?

I have created several views of the same table and they somehow already cluttered my Views pane. I don’t want to delete them because I have certain use for each of them.

And today, look, you can now group views into Sections:

Thank you Airtable for listening to your users. Now I wish I could have the ability to hide this “Create a vew” pane/section.