Each set of instructions inside the master Publisher Tag is referred to as a “tag config”.
Each tag config describes the behaviour and targeting for a single ad unit type (in-image, adhesion etc)
You can build up as many configs as needed to match your requirements and the publisher’s site structure.
For example, need in-image on desktop and tablet, but under-image on mobile? Just create two configs which will both have identical targeting, except for device and in-image positional behaviour.
