In the “Categories” section you can create different categories. A category is a subgroup without a web page. It is there mainly for the purpose of leading a group dialogue. To create a category, click “Create category”.
You can assign your category a name, description and color.
The next step is you inviting to your category any members of your business who you think this group dialogue concerns. These members can accept your invitation in their notification center.
To publish a post under a category, click "All categories" below the field where you create a post, and then choose a necessary category from the drop-down menu.
After that, all of the messages that the category members exchange will be visible on the social wall to only them. The category's posts will be marked with the color you assigned to it while creating it.