CSS Class completion not working?

I read this in another post.....

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If you have style (or appropriate link) tag(s) in your file, IDE will offer entries from them ONLY
If none of those tags are found, IDE will offer entries from all .css files

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Are there some way to activate, If you have style (or appropriate link) tag(s) in your file, IDE will offer entries from them and the All .css files?

Why PhpStorm have that limitation, only show the CSS inline, and no always all .css's in my project.