While the standard series are populated automatically, custom series let you organize your thoughts precisely.

Once you’ve entered the series context and switched to the series you wish to arrange, there are a few ways to add concepts:

Drag & Drop

Similar to how you would move a concept to a different spot on the playpen canvas, you can drag the concept over to the Hex button.

The button will grow to indicate the concept can be dropped. When the series is empty, or you’re viewing its last concept, the dropped concept will become the new last concept. Otherwise it will be dropped at the current position in the series, offsetting the succeeding concepts.