Could you clarify you are using for this collection? This will help determine if it is a specific script, a file to be imported, or a database entry.

: In Onshape, you can "Add custom features" by searching for the document name or ID and adding it to your toolbar. 3. Make.com (Automation)

: You might be attempting to attach a feature report from a service like Survey123 to a layer in ArcGIS Online using Make.com .