SMF Question - Multiple groups per user?

[TheLuciferSausage]

Hiho,

I am one of the moderators in TremSpain forums (in which we use SMF too) and was wondering how can you include a user into two groups at the same time.
As per what I have seen in some users, they belong to "Developer" group and to "Donator" group too.

In fact, are those traditional groups or is it some kind of plugin?

Thank you!

[Stythys]

go to the 'account related settings' of a user and below the primary user group there should be a 'show additional groups' link