Extended calculated parameter - calculate power from cumulative energy

I would like to see an extra calculation option added to a calculated extended parameter. Is it possible to get the (average) power calculated from another extended parameter that contains a cumulative kwh value? I see ‘cumulative’, ‘energy’ and ‘change’ as calculations, but I don’t think they are suitable for this. It must be about the opposite of ‘energy’. I assume that you have to take the status interval into account.

This feature is now available on the Calculated as option -

Note the source energy data must be cumulative.