Fane,
"Old Segments" are being replaced by the new "Construction Kit" so you will be able to add your buildings and so.
Entity Object Selection : Reloaded needs updating as mentioned already to make precise selecting of individual objects possible.
Selecting Objects via list is something TGC could look at adding. Perhaps in the entities left hand window. e.g. View as Icons/View as list. Object lists can be very useful and helpful without cluttering the UI of course. For example to select an object by "Name" or object "Number" from the list so that it then highlights in the editor scene window, to make it easy to find, for selection and editing, with a command/choice of perhaps "Go to Object" so the user can go straight to the object in the world or when a specific object that may be causing a level to fail to run or crash can be found or isolated and removed. as another example. Of course to do this latter point we would need some kind or "Error Report" which accurately tell us, as users which object by Name or Number is offending so we could correct the issue. As such Object Lists can be very useful.....
Another very good use for an object list is that in the list objects could potentially be dragged to a parent in the list so object become "grouped" Selecting the parent would select the group for moving as a whole group. e.g. Table and all objects placed upon it. Another useful use would be to "Attach" one object to another as a group. This could be useful for many things. e.g. Attach a smoke trail to a Rocket, string together a group of fish of flying birds so the move in tandem and so on.
These and much more I guess you can think of.
Reloaded or any engine could have all kinds of advanced and helpful additions potentially added to help users and make better games but all a lot of work and more additional strain or pressure on the engine too perhaps which would not be helpful to it. Whats good in theory for users is not always good for the engine perhaps.