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Hmm, since I read about this piece of information, it's kinda stuck in my head. Could anybody explain it?

You are welcome)
Does it help?

Also didn't get, how to make it. Could you explain it?

And still, it doesn' t work in my... People, who did what to make work the canvas rotation?

Choose Window > Brush Settings. Or, select a painting, erasing, toning, or focus tool, and click the panel button on the left side of the options bar. Select an option set on the left side of the panel. The available options for the set appear on the right side of the panel. You can import a wide va...