Date ranges on heat demand tool (for multi winter viewing)

[zarch1972]

Now that some of us have a few years of data in emoncms, I think adding date ranges for the heat demand tool would be useful.

For example, I have made changes each summer to the configuration of my system and / or the fabric of the house.
I'd like to see the results (COP) of these changes in the heat demand tool.

At the moment, i've got some really cold days from the other week, after making changes in the summer, but they are lost in the 2 previous winters data.

1. Could we have different coloured plot points for each separate winter (maybe group July to June for each year) if showing all years.
2. Or allow a drop down of the separate winters (ie July to June)
3. You could also have self selected date ranges if you really want to dig deep perhaps.

Gimme a shout if that doesn't make sense.