There are filters and quick filters. If you want to create filters for use as needed, I suggest you use message filters. Quick filters are just as named: quickly.

But filtering with from, to , subject and body was absolutelly essential and now it is missing in the TB115, why?

You are incorrect. Virtually nothing has changed in 115 for filtering. Can you post a screenshot of what you see when you select the filtering menu?

It's there. Please post a screenshot of what you see when you click the filtering feature.