Welcome! Please see the About page for a little more info on how this works.
Beside selecting the whole file and then evaluating the selection, can I evaluate the whole file in a more convenient way?
Adapted from questions asked in the #calva channel at Clojurians Slack.
#calva
Yes. there is a command for it: Calva: Load Current File and Dependencies.
This is one of the first things covered in Calva's Getting Started REPL. You might want to start there.