Is it possible to search in various input fields of the program mask at the same time instead of only using the input field of the search box?

Yes. Click the symbol "new" in the toolbox (empty page) and go to the first field of your choice. After inserting your query continue with the binoculars and go to the next field of your choice. Now every time you wish to search furthermore, simply click the symbol "continue search". This may continue until you have reached the final field. The final entry of a search query can be completed by pressing RETURN or ENTER. This will start the search automatically. As result of your search you will find a list including all found titles.