About dataBlocks
From dataZoa Wiki
A dataBlock is a display similar to a table, but much more powerful. It holds a group of series that scroll together through time, and offer instant graphical views as well.
Grouping and Ordering
How are dataBlocks formed? Series can form a dataBlock because they were:
* Dragged in from the Web as a group, using the dzDot * Manually uploaded as a group * Explicitly grouped by you
This means that dataBlock membership can change dynamically, but you can drag a dataBlock to a new or existing tab and fine-tune the dataBlock there.