First off, template senors are amazing. However some of the nuanced sensors can be difficult to test. However depending on the sensor I could have months of historical data that I could be used to see exactly what is going to happen when the sensor is applied.
A lot of my template sensors are run against power (W) figures and change depending on the current value. rn I can get the sensors to work 90% of the time very easily, but that I find that sometime the appliance will work slightly differently.
What I would love to see if a method similar to history page where I can load up all the sensors I want and specify a time period and then run a new sensor based upon this data and it will give me a new item which shows the results.
Also for comparison you could show the sensor you are recalculating as well and very easliy see how different the sensor would have been give the new values.
This is not a method of changing historical data, but a method of seeing how it would have working given the historical data.
So in my case when I have some historical run power data which was collected while the item was running and then I can make sure that the situations where it was not working 100% would work as needed.
Thanks.