Question regarding error bars in graph builder

[#1]

When we build a BAR graph and use the nested  mode we cannot see the "standard error" or "standard deviation" on the graph. This is consistent in any data set we use. In excel it is possible to do it.

It is very crucial for us to show the SE or SD of the mean bars.

For example, in this attached graph we wish to have an SE on the Blue Bar and also on the

Red Bar each for his on dataset.

Can I get some help with simple way to do it?

Cheers

[#2]

When I try, I can't get the error bars for the nested option - but it works fine for side by side bar graphs.  I'd recommend the latter anyway (it is clearer for me, at least), but I don't know why the error bars don't appear for the nested bars.  I'd also recommend customizing the error bars to make them thicker than the default.