We use recent card, but IFAK we succeed to show either all categories or only one category, but not the #1 and #2 (etc.) categories. We have multiple announcement categories and we would like to display them at the top on the category pages but in unique one "recent card" widget, and not multiple ones. I searched but I didn't succeed to find how to do this.

I would like to know if it is possible to display multiple specific categories. For example, if I would like to display only categories #1 and #2 but not the others, how I could do that ?

We have invite capability, but we don't have the capability to bulk invite users, just one by one. However, if this is something that interests you, we could build this out as a feature in NodeBB. Give us a shout at [email protected] and we can send over a quote

The short answer is no. Recently discussed here.