h7

Hi Amaya People,
I tagged some text as <h7> trying to make them appear in the TOC that Amaya
11.3 (Dec 2, 2009) builds.
I flopped miserabily.
I know the <h7> tag does not exist, but is there a way to tell Amaya to
include my <h7>s (or any other) tags in the TOC it build? A configuration
tweak?
TIA
--
Juan Lanus