The config editor change the phil just posted is a big advance in that UI (@dwall @ramshackle-jamathon i think you both got sneak peeks of this :-)) This will make dealing with large config documents dramatically easier, as you will quickly be able to see what solid or resource is misconfigured and navigate to it in one click via the pane in the bottom right. Also errors are more prominently featured. Please let us know what you think!