Definitions: Change Definition "Types"
When you add a Network or Service definition, you have to give it a type. For example Host (that you have to supply an IP) or DNS Host (that you have to supply a dns to be resolved). Since you create a definition of a specific type, you can`t change it afterwards so if you have many rules relying on that definition and you need to change a static IP (of type host) to a dynamic dns host (type of DNS Host) for example, you`ll have to create a new definition first, check where the old definition was used and create the same rules for the new definition again.
That`s time consuming and errors might occur.
An easy change of the type for already existing definitions would be a nice to have feature.
A similar situation manifests when adding a new group, and wanting to incorporate an existing definition; one has to modify everything that depended on the definition first.