The check in a menu item

[Terry Vogelaar]

In a menu I have 3 items that can be checked. When the check appears in the
1st item, it should be removed from the 2nd and the 3rd item, and so on.

But there is something about checking I don't understand. When I want a
menu-item to be checked, I put "!c" before the line of that item. But when I
want to move the check from that item to another, I get (or RR gets)
confused. If I just remove the "!c" from the first line and then add "!c" to
the second, I have 2 items checked instead of one. But when I remove replace
the "!c" with a "!n", the check is gone. Then I check a third item. Then
chaos begins. "!n" is visible in the 1st item. And the more I swap the
menus, the more "!n!n!n"s I see.

With a lot of extra scripting, I managed to let it work reasonably reliable.
But I've got a feeling it should be less complex.

BTW, why is there a "!n" or a "!u" anyway? I think the check/diamond should
be gone as soon as the "!c"/"!r" is gone.

Terry