Can't run XCUI Automated tests in IDE

My xCode IDE is not displaying the diamond shaped play button used to execute the xcui tests. It actually existed a few weeks ago and disappeared from the IDE. I've tried uninstalling and reinstalling xCode to no avail. I can run the tests from the Product menu, but the problem is it runs all of the tests in the solution. I need to be able to only run one test at a time. Please help, I've been stuck for a week.

Just make sure you have the associated scheme selected for the associated test to be triggered.

Can't run XCUI Automated tests in IDE
 
 
Q