This has caught me out many times. I have created a helper (say a utility meter) and then I come back a while later and wonder what it that based on. When you go into the options you only see a small number of things compared to when it was setup.
This is the same with history stats. You can create a helper for a particular state but once created all you get to see if the start, end and duration. You have no idea what state this is actually reporting on
This is the same for a lot of helpers that once setup you can never get back to see how they were created.
I suspect a lot of it is that changing those values would invalidate the history but it would be helpful to at least see values as read only.
Using your utility meter as an example, are you saying you nerver get to see or edit the input sensor after creating one?
AFAIK each helper allows editing all attributes, though some attributes are unfortunately hidden behind an “options” button. For Utility Meters, the normal screen shows Name, Icon, Unit of Measurement, Display precision, Entity ID, Add label, and Utility Meter options. It is the last one that gives the missing attributes in yet another modal window.
I second the issue with “broken” entities. I see no way to edit, nor delete them either.
Interestingly though, I have noticed that some new helpers that need time to produce a result (depending on helper config), are “unavailable” while initialising. The only solution I see is to wait - it becomes “available” and therefore editable shortly afterwards
So after you have set it up there is no way to tell what was set for things like Delta values or reset cycle. This makes it impossible to recreate unless you remember what you set. (Yes you can see some attributes if you start digging in developer tools but that don’t directly tie back to the options and some just aren’t there either.