1) AC seems to prefer to select invisible elements (i.e.: marker extent line, things that are concealed behind slabs/fills) over things that are immediately visible and directly under the spot that I've clicked. Yes I know I can hit tab to cycle through, but why would I do that if there is only one object (the one I want to select) visible where I'm clicking?
2) Why can't AC figure that if I click near the edge of an object (slab, zone, fill, etc.) to edit it, that I'm more likely to want to edit the edge (i.e.: offset the edge), and not default to move the object. Similarly, if I click near a node, it's obvious that I'd want to edit the node.
3) Why can't zones be visible in section, and above home storeys? That would save a lot of time labelling rooms in sections as well as voids above double height spaces.