This applies to version 14 of your PBX GUI
Side Bar Widgets are a location for widgets that need global access to UCP. EG these would be modules such as Presence, Phone, Chat which you'd want to use no matter which dashboard you are in.
Adding a Side Bar Widget
To add a new widget look for the symbol on the upper left side of UCP
After clicking the Add symbol you will be presented with the "Add Widget" dialog
There are two different types of widgets "Dashboard Widgets" and "Side Bar Widgets". This article will focus on Side Bar widgets. For Dashboard Widgets see UCP Widgets
On the left side you will a category list provided by each module
Upon clicking a category you will be presented with a list of widgets you can add.
Each widget has a title and description along with an icon to recognize them at a glance
To add a widget to the Side Bar click the add symbol
Side Bar Widget Settings