Amenities

Beds:22
Water:26
Food:24
Power: 103 (though the wind turbine is not connected to the grid)
Security: 228 base
12 with guards (6 posts)
6 from artillery
246 in total with any extras from dogs etc
Jobs: 18
Farmer: 4 Guard 2; Barmen 2; Scavenger; Clinic; Optometrist; Barber; Soda Fountain; Weapon seller; Armourer; General Store; Clothes store; Artillery


Table Lamps 

There are 6 in all, these are off after importing. Enter workshop mode and select then cancel selection to switch one on. 
1 in the bus
1 in the bedroom above the workshop
2 in the painted building by the mutfruit trees
1 in the bar
1 in the hallway above the clinic


Rockets

At the guard post on the southern building there is an oxygen tank and a ball track ramp. You can move the oxygen tank onto the ramp and shoot the valve with a pistol, and watch it fly. If you want to spawn more oxygen tanks, the code is on the side of the orange cart.

There is a firework mortar on top of the building with the wind turbine. This can be triggered either with the switch at the guard post there, or by shooting at the target halfway up the side of the building. Just add fireworks or weather changing mortars to the launcher.


Pathfinding

Pathfinding is broken for Jamaica Plain. In the vanilla version, several sections no companion or settler will walk on. I fixed the stairs in the southwest by putting a ramp underneath which can be accessed by removing the mats, and I added some of the warehouse wire flooring along where I place the mutfruit trees, so that people can walk along that part. The corners of these floor parts should be accessible. 

The priority path for settlers appears to be walking along the road just outside of the settlement. Often they won't take the direct route, they prefer to take the extremely long way around. There are mods that change this, but I haven't tried them.

There can problems with the painted building by the mutfruit trees with pathfinding sometimes. Waiting some time after import can settle some issues though this won't always work. Also sometimes new settler ai seems to mess with pathfinding.