Hue Tutorial SQL

New user here. Is there a tutorial or online class I can take to navigate the user interface. I use the SQL functionality.

My main question is if I create a new instance and run for i.e.:

SELECT * FROM TableA;
SELECT * FROM TableB;

Where do I click to view both results? Currently it only shows the last result.

My next question is if I create a new instance, how do I return to a prior instance?

Thanks