Three wishes for the setup of a flexible interval:

1. Disabling an item means you can have a clone of it which can be active.

2. While saving a cloned item with the same key a pop-up should come asking whether you want to disable the former item in order to have the new one with that (same) key.

3. Items from a given template should be deletable per host.

Doubtless the latter would become redundant if 1 +2 would be implemented.

Thank you!