CLion/Swift RegExp intentions doesn't work

Hi,
initially, I do have found this one: https://intellij-support.jetbrains.com/hc/en-us/community/posts/206212449-Intentions-about-RegExp-doesn-t-work but that one is really old and RegExp plugin is abandoned. I do have IntelliLang plugin enabled.
(RegExp intentions are enabled in preferences)

Now, it is that simple - in Swift project RegExp intentions are not available.

Now, firstly, is RegExp intention supposed to work the way it works in Intellij IDEA while editing regexes?
If it is...what I am possibly doing wrong?