Gmail - delete multiple emails - no select all line?

How do I delete all? The problem is that my gmail pages don’t have that line below Archive, Report Spam, etc. Instead, my first email is immediately below. That is true for the inbox, sent mail, spam, trash. Control/shift won’t hilite everything in between a top and a bottom hilite. And life is too short to click individually. I’m going to fill up my space allowance unnecessarily.