When I refresh the bar data I would like to display the loading icon over the whole thing but I only seem to be able to get it to appear in one of the narrow columns.
You can change the order of items on the side bar (see the image). Just drag the loading icon to the top. Components higher up on the list will be shown on top of components below them.
Btw, this is if you are using the new UI. If you are on the legacy UI, then it is the opposite - drag the loading icon to the bottom of the components on the screen. Sorry for the confusion; posting more screenshots shortly.
I have created a series of columns each with two images inside. I set the height of the image to the size of the graph I want to display and 0 if I don’t want to show that colour. Orange always shows on top of Green.