[FR] Ability to set a time offset for an entity

[Kanecaine]

Currently there is the possibility to set a time offset per chart. I would very much like this to be possible per entity in the same chart. This way you could add an entity multiple times with different offset values and directly compare their values within a certain time period. For example, monthly electricity consumption compared to previous years or hourly gas consumption compared to the previous day. That would be really great, especially since the Hisrory Explorer Card offers these great interaction options, such as scroll and zoom, which no other card offers in this form.

Such a function was originally requested in the old repository, but was never implemented: https://github.com/alexarch21/history-explorer-card/issues/164

Maybe it might also be possible to implement it in the course of this FR: https://github.com/SpangleLabs/history-explorer-card/issues/2

[melwinek]

This would be very useful. I think a lot of people are waiting for this.