css file not reload when focus on css tab

Hi
i create an compass project and i open in phpstorm scss file and the css file compute from scsss file .
When compile scss file is ok  when i click on the already open file in phphstorm ( using tab)  , phpstorm don't detect that the file have been update  so i edit
the old css file .
Is there a way to configure phpstrom so it detect by itself the change when css file tab has the focus and update the content of the file ?
the synchronize button in the menu let us update the content of the file but do it manually is not user friendly !!!

regard's