make a toggle function for each of them
then in your player script or main.wdl
on_i = toggle_nameoftogglefunction;
or if you mean hide all the panels on one key
just put every panel in one toggle function
on_i = toggle_nameoftogglefunction;
lite-c example
function toggle_panel()
{
if is ("insert name of panel here", VISIBLE)
{
reset("insert name of panel here", VISIBLE);
}
else
{
set("insert name of panel here", VISIBLE);
}
}
without quotation marks
just add more lines with reset and set like this
function toggle_panel()
{
if is ("insertnameofpanelhere", VISIBLE)
{
reset("insertnameofpanelhere", VISIBLE);
reset("insertnameofpanelhere", VISIBLE);
reset("insertnameofpanelhere", VISIBLE);
reset("insertnameofpanelhere", VISIBLE);
}
else
{
set("insertnameofpanelhere", VISIBLE);
set("insertnameofpanelhere", VISIBLE);
set("insertnameofpanelhere", VISIBLE);
set("insertnameofpanelhere", VISIBLE);
}
}
dont know if this example will work directly with wdl/c-script
perhaps some function is named differtly but the basic idea is there

also the hide multiple panel example i gave will only check if one of the panel is showing, but it would not matter in that case and easily changeable

I dont know c-script in anyway
