I have to apply the default value in the filter when they open the dashboard. This filter should only work on few sheets. Is there a way to do it. One way is to exclude the field using set analysis. This will be lot of work. Is there any better solution?
Another is to set a default bookmark that is selected when opened. The drawback is that it is only a initial selection that is initiated when you first open the application, it is not re-applied during your session.
A third approach is to find a extension that meets your needs. I do not have an direct link for you, but I'm pretty sure I've seen at least one that does what you want. Check out https://developer.qlik.com/garden