Deleting a view or table
You have a few options for deleting:
Select the table or view (a blue outline will appear) and hit "delete" on your keyboard
Backspace into the table or view
Select the table or view and Ctrl/Cmd + X (or equivalent) on your keyboard
Moving a view or table
You have a few options for moving:
Method 1
Select the table or view
Select Ctrl + X or Cmd + X
Select Ctrl + V or Cmd + V in the new location
Method 2
Hover over the table and click on the vertical "..." to the left of the table's title
Hold the click, and drag and drop the table to the new location