Open Database Dialog - with Templates

Does anyone know if there’s any way we can use the Open Database dialog that you get in Designer client which allows users to choose template files as well as Databases? I’m hoping there’s something in the Notes API to provide this as I there doesn’t seem to be anything listed in Help which would allow me to do this.

I want to build an application which will allow our team to keep track of what databases are where and would like them to be able to easily select a template (NTF) file through a dialog box.

Thanks,

Emily.