Add-on What kind of addon can this be?

[blackburn27]

Hello,
i've been looking for an addon for a long time. it's about prefixes and sub categories.
All prefixes are displayed above, if you click on e.g. PC, you will see all topics created with this prefix.



What kind of addon could this be? could someone possibly show / post the link to me?
Unfortunately I have found nothing

 

[RobParker]

It's one of the multi-prefix addons

 

[Niro]

https://xenforo.com/community/threads/xenconcept-prefix-forum-listing-paid.136981/
https://xenforo.com/community/resources/xenmax-prefix-filter.5902/

 

[blackburn27]

thanks, just which one is it :/
for xenforo 1

 

[Niro]

thanks, just which one is it :/
for xenforo 1

https://xenforo.com/community/resources/prefix-forum-listing.80/