I forgot to mention that another workaround I found is the one mentioned here.
Filter = /* your regular exploration filter here */;
watchlistCheck = InWatchList( 1 ) OR InWatchList( 2 );
Filter = watchlistCheck AND Filter; // combine watch list filter with your rule
The problem is that I have to select all symbols and it takes so many time.
What I'm asking if someone can point me if there's another way to solve it.