[Semediawiki-user] "not in category" filter

[Davide <dav...@gm...>]

Dear all,

I am surprised not being able to find any instructions on how to set up an
inline query listing pages which are NOT in a specific category.

For example a list of all pages not in category "Unanswered".

I know I could set up a property with [[Has type:boolean]] such as
[[Answered::Yes/No]], but for now I need to use the "not in category"
option, otherwise I would have to add that property in about 3000 pages on
my wiki.

Any suggestions?

Davide