Hi Krzysztof
Thanks a lot.
Your solution is very fine!
Unfortunately
Several engineer created a lot of model with under defined sketch.
To check under defined sketch take long time.
I feel your pain. Have the very same problem. If I have to modify or send out a drawing to an outside agency, I open the part file and check each sketch just have to open and try to close. Cause I have the box checked like Krzysztof Szpakowski suggests to do.
Sent several files to China to have parts made and got them back wrong. The sketch shifted because it was not fully defined. That is the reason I check all before sending them out.
You might try using flat tree view for your feature manager display tree.
Another alternative is to use the Go To function to search for ( - ) in your feature manager design tree
You could also try Solidwork Design Checker add in (but you will need SolidWorks Professional)