pdnnoob, thank you!
Now... How can I group them to be like in Photoshop. So filter tips in Photoshop lessons I could use similarly in Paint.NET? (For example, filter>other>custom)
What if my picture is larger and I want to keap it that way?
How to export from Photoshop original filters and import them into Paint.NET? If there is such topic or discussion, please give me link (I haven't found).