To add a custom dropdown field, simply find the "Fields" panel within the admin screen. Here, you will find the green "Add field" button at the top right of your screen.

Select the area of the platform for where you would like to create a filterable dropdown menu. 

You can manage the categories that the section may fall under by using the checkbox menu below. Finally, find the dropdown menu labeled "Type", where you can choose the type of field you desire. For this FAQ example, we will be using the "Dropdown" option. 

Add options to filter through for your new dropdown menu. These options can be made filterable within the platform by using the checkbox next to "Filterable".  

Looking at the platform, you will find your new dropdown field on the left-hand navigation menu.