\SetSectionFormatting[breakbefore,wholewidth]{chapter}
        {56\p@}
        {\FormatBlockHeading{\large\bfseries\MakeUppercase}}
        {24\p@}
%% section -- drugi stopień
\SetSectionFormatting{section}
        {24\p@\@plus5\p@\@minus2\p@}
        {\FormatHangHeading{\normalsize\bfseries\MakeUppercase}}
        {10\p@\@plus3\p@}
%% subsection -- ewentualny trzeci poziom
\SetSectionFormatting{subsection}
        {16\p@\@plus4\p@\@minus1\p@}
        {\FormatHangHeading{\normalsize\rmfamily\bfseries}}
        {6\p@\@plus2\p@}