+UseShortcut "C-F20" "layout Part"
+UseShortcut "C-F21" "layout Chapter"
+UseShortcut "C-F22" "layout Section"
+UseShortcut "C-F23" "layout Subsection"
+UseShortcut "C-F24" "layout Subsubsection"
+UseShortcut "C-F25" "layout Paragraph"
+UseShortcut "C-F26" "layout Subparagraph"
+UseShortcut "C-F29" "layout Standard"