Batch and real-time segments can be created using the UI. In order to create a segment, the master segment must already be built-in Master Segments.
Learn more about creating segments in this video:
Creating a Segment
Navigate to Audience Studio > Segments.
From the Create Batch Segment action menu, select one of the following.
Create a batch segment, which will require defining rules for attributes and behaviors
Create a folder, which will allow you to create a folder
Create a real-time segment, which will require defining rules for attributes and behaviors
Move segments to folder, which will allow you to search, select, and move segments around within your folders
Save your segment.