Clicking on the icon open/close the section, clicking on the title of
a section open its associated page, double click on the title do both
actions.
Most section have now a basic generated contents, but we can WML-add
text (like for abilities. Weapons specials probably need this) and
maybe later use specialized contents with a short additional info or
image near the links.
PS: Units section-pages not done yet, and some details to fix about
the icon (fast clicks sometimes doubled, and do we allow click at left
of the icon ?)
