Markdown Key, Alt+Leasey Key together.
Markdown menu, Markdown Key then M.
Bold, Markdown Key then B.
Italic, Markdown Key then I.
Block quote, Markdown Key then Q.
Link, Markdown Key then K.
Ordered or numbered list, Markdown Key then O.
Unordered or bulleted list, Markdown Key then U.
Heading 1 through to 6, Markdown Key then 1 through to 6.
Tables, Markdown Key then T.
Report column and row information when creating table, Markdown Key then C.
Footnote, Markdown Key then F. Global.