Attributes for Tomorrows off peak 1&2 etc

[nibbles-]

Is your feature request related to a problem? Please describe.
NIL

Describe the solution you'd like
Currently there are attributes for different values of the days price level e.g off peak, off peak 1 and off peak 2 etc.
It would be nice to have tomorrows values in similar attributes i.e t_off_peak, t_off_peak_1 and t_off_peak_2 etc.

Describe alternatives you've considered
Lots of templates and automations for achiving the same results but it would create an unnecessary complex hass installation.

Additional context
NIL