Editing Board Views

I am trying to edit the table view in a board to turn it into a group view, but I cannot see a way to do this.

What I would like to do …
Under table view, create the following columns, in order.
Column 1: Assignee, sorted alphabetically.
Column 2: Highest priority card
Column 3: 2nd highest priority card
Column 4: 3rd highest priority card
Remaining columns: card field choices already available for configuration (status, created by, collaborators, etc.).

So basically I’m asking if one can assign a filter to a column (2,3,4), and if the first column can be something other than name (1)?

Thank you in advance.