Yes! You can mention other Facebook Pages. To do it, type in the “@” symbol and start typing the first few letters of the Facebook Page you’d like to mention.
A small window with related Facebook Page results will appear, from which you can choose the one you’d like to include.
Note that in the beginning, you can only select a Facebook profile. Mentioning feature won’t work if you choose a another platforms at the same time.
Step 1: Select Facebook page only.
Step 2: Type in “@” symbol and start typing the first few letters of the Facebook page you’d like to mention.