Setting Custom Template as default template for a Seeded Concurrent Program

I am in the process of creating an rtf template for a seeded concurrent program. The XML template is registered with custom application (which is different from the seeded application that owns the concurrent program). The seeded program has a number of seeded templates as well.

I wish to set this custom template as the default template for the concurrent program - so the user does not have to select it everytime he runs the concurrent program.

In System Administration/Concurrent Program/OnSite Setting tab there is provision to select a default template, but unfortunately the drop down is not showing the custom template (presemably because it is not owned by the application that owns the concurrent program), though it is displaying the seeded templates.