Log only objects changes / remove storage files

[gtsamis]

Well, object log main purpose is to log all telegrams. If you want to log changes you can try using trends instead. Each event script is executed only after new value has been updated in the database, so you should use storage or another object if you want to get previous value.

New firmware has storage.keys funciton which returns keys for all known storage items.

Is there any way to completely remove a storage key that not longer used?