"Add Function Import" Stored procedure missing from list

Can anyone tell me why only 1 stored procedure only is showing, if I have 5 stored procedures available?

The permissions for the missing 开发者_如何学Pythonone are the same as the one that's showing, but I am still not seeing it in the list.

Figured it out. I need to add the Stored Procedure to the list of Stored Procedures in the Model Browser first to have it appear in the dropdown list.