The mobile app has a great feature in which you can group your accounts under different categories. I find this extremely useful for seeing at a glance what my total cash flow is - for instance, I've grouped all of my transactional accounts together with my credit card and my manual 'cash' account, so that I always know exactly how much money/debt I have when comparing my normal accounts with my credit card.
But the desktop site doesn't have this feature... The accounts are all laid out individually, and the order I place them in doesn't seem to 'stick', either. Is this feature still coming? :)