Change plot anything over time to optionally merge all blocks
Our current plot selection over time, and plot data over time filters both are very block based. Usually, what users want is not one or numerous blocks, but to see their data presented as a single result. In other words, make the option (default on) to merge blocks before running these filters.
Well, Ken had a good point (as always). You probably want to run the filter as is, under the cover, and then combine the results of all blocks. This will be more efficient than merging blocks at the start.