Hello, I have a print service that is exporting a web map using a custom layout with a map series enabled. I have a custom parameter that lets users select a page from the series to export. The tool works in ArcGIS Pro, however in Web App builder, the print widget only supports the format and layout template parameters. The print widget will only export the page that is selected by default, but there is no drop down for users to change the default. I'm thinking to use the Geoprocessing widget, but I'm unsure how to have it convert the web map to JSON? I'm assuming this is something I would have to set in the python script? Any ideas are greatly appreciated!
parameters in Pro:

print widget parameters:

Geoprocessing lets me choose the Sheet, but not sure how to automatically give it the web map as json.

currently the print widget provides the json, is there a way I can provide it here?
