How to create an aggregated view across multiple b...

[CompelPictures]

Is it possible to create a custom view type based on an existing view type but modified?

I would like to add columns with labels to the calendar single day view.  Is this possible?  

[ScottWorld]

No, that is not possible in Airtable, but you might want to check out Noloco, which is a paid external app for Airtable. It allows you to create interfaces & portals for Airtable bases, and it offers custom views like what you are talking about.