I am thoroughly enjoying this game especially the settlement building. I know some people will disagree with me, but I had two suggestions to make Settlements both more fun (less headache) and add a new element to it.
So I built up sanctuary and have like 6 unassigned settlers just meandering about. My first suggestion would be more of add a feature where you can send your "settler" out to scavenge supplies you desperately need. I keep running out of aluminum mostly, with most crafting and upper power armour suits requiring you to use aluminum. So if I have "Settler A) why not add an option where I can tell Settler A to go out on a "scavenging" run for "aluminum." It would run the risk as on Fallout Shelter, if you send out an under geared and ill prepared Settler they get killed very easily. So you have to assign them good gear and armour and send them on their way. Send them to areas you know they can handle etc.
My second request/suggestion is I have not seen an option to rename any of these settlers. You know how hard it is to remember who you assigned to do what based on nothing but looks? I went to assign one settler to run a new store i opened and suddenly my supply chain to Abernathy Farms disappeared.
And the Settlements are giving false readings on the pip boy. Had it tell me i had no food, no water, no power, no defense etc in Sanctuary when I had everything I needed there.