Deployment Types - Templates
So the deployment template will sit at the 'top' of deployment types of an application.
Admins could then choose which deployment types would use the template in a new tab called, let's say 'deployment types applied to'.
Admins would use tick box options on each tab, to choose what they want to be active in the deployment type template.
So as an example. You could have x86 and x64 deployment types where all the tabs, bar the 'Programs' tab, as set by the template.
This way you set the template once, add the x86 and x64 deployment types and you only need to change the MSI / EXE / etc on each of the deployment types. If you ever need to change the parameters for both the x86 and x64 deployments, unless it's the actual installation program, you'll only need to edit the deployment type template.