I like to drill down on GL expense or income account details and then quickly Group By many different things I might be trying to check. I am sure it's a possibility to do it in the design side of the Modern Reports, but it's not a quick step. Right now there is a Group By box you can choose and review the expense or income account you are looking at very quickly. If I want to total that expense account by month, vendor, even customer if it's for a project; it is quick and simple and in one step.