Running multiple ScalaTest tests in an ad-hoc suite

Hello IntelliJ Scala community,

I had two tests failing when run together in sbt, while they were successful when run  separately in sbt and IntelliJ. So, I wanted to test from IntelliJ fix  for these two tests, that they do not interfere with each other, by selecting and running these two tests only as a single suite.

Is it possible to define and execute ad-hoc test suite in IntelliJ by selecting several ScalaTest tests?

I know I can "test-only" in sbt, but it would be nice if one could do it from IDE without switching.

Kind regards,
Stevo Slavic.