Missing toolbar one-click button to run opened file unit test?

Hi there,

The IntelliJ toobar has the "Run" (green triangle) button, but it only runs the last-ran test, or select to change to previous ran test. However, often times, I want to run a newly opened unit test file in IDE. I can not do this with a single click button, but only by pressing "CTRL+SHIFT+10" on the new test file. That's a lot of keystroke for a frequent operation. Is there way I can configure a one-click button to run the unit file file I just opened?

Thanks,

Zemian