Thank you dor your suggestion.
Currently, you have an ability to run the opened in the Code Editor test using the 'Run tests' option in the context menu. This is located right after 'Debug unit test'. This option forces the run of the current test with all its methods.
Additionally, you can find the test result icons at the left side of the editor near each your test method. If the test was run previously, the icon is green (passed) or red (failed). If the method wasn't run its icon is blue.
If the test method was run, you can use the context menu of this test result icon and select the necessary option: 'Execute test class' or 'Execute test method'. This option forces the rerun for the selected item.
I kindly ask you to inform me if these options are the same which you are looking for. Please let us know if some of them are absent for you.