I'm creating a page to insert an item into a custom database. The database stores 'Releases' by a single musician. In the primary database, there is a reference field ('release_type') linked to a secondary database. Items in the secondary database include 'Live' and 'Album'. I have added both datasets to my 'Add Release' page. I created a dropdown to set the value of the reference field ('release_type'), and connected it to my primary dataset ('Releases'). I've set the 'Connect a List' section to connect to the secondary dataset, with values connected to the 'Title' field. I am unable to connect the primary dataset's "Value connects to" property to the reference field in my primary database. I can only set it to a Text or Number field. How do I set up the dropdown to update the reference field 'release_type' with the value selected from the secondary database?