In our prepress department, we use Publisher to check the dimensions, artwork and other factors for customer supplied files and set up a digital proof that gets emailed back to the client for review to ensure file accuracy and one more review before production. We ask that file submissions be in PDF format since the majority if not all apps can export to this. Some PDFs are multi-paged and/or have built-in bleed/trim data. InDesign displays a dialogue box in the import window that gives you various options for page range and media boxes to allow the user to import what is desired. Publisher does not display the import options in the same manner.
Thanks to user Fixx, i now know it is displayed in the context bar in keeping with the UI doctrine established by Affinity.