Content columns define what will be displayed when a row’s conditions are met.
They contain the actual creative assets or text that appear inside the playable.
Supported Content:
Text → e.g., headline_copy, cta_text
Image → e.g., button_image, background
URL → e.g., cta_link, iframe_source
Each content column can map directly to a layer in the project.
When the catalogue row is active, those content values replace the linked layers dynamically.
