After using Apex for 9 months and been adding different modules so now its about time I re-run wires, etc to outside cabinet instead of inside. I am also ready to order 2-DOS dosers and just trying to map out everything to see if need to order any other modules and avoid a 2nd Energy Bar. Here is setup...what can I teak/improve? Also, the empty slots...what can I use them for? Appreciate your help/input.

APEX Controller
Power to Wall Outlet (so Apex knows when power failure)
Aquabus
1-Energy Bar
2-FMM (ATO)
Variable Speed
1-
2-

ENERGY BAR #1 (Plugged into UPS)
120V Ports
1 - Return Pump
2 - Skimmer (and Cup Cleaner using splitter)
3 - Reactor
4 - Heaters (2 using splitter)
5 - Refugium Light
6 - Cabinet Light
7 - FMM (ATO)
8 - FMM (Meters)
(Note: I have another light on manual timer I would like to control through energy bar if can make another spot or just buy another Bar? I would put both FMM"s on splitter to share power)
24VDC Ports
1-
2-
1Link Ports
1-WAV #1
2-WAV #2
3-
Aquabus Ports
1-Apex Controller
2-Apex Feeder
3-DOS #1

FMM (ATO)
1-ATO Low
2-ATO High
3-RO Low
4-RO High
Aquabus
1-Apex Controller
2-FMM (Meters)
ACC - ATO Pump
Power - Energy Bar

FMM (Meters)
1-Return
2-Sump
3-Emergency
4-Leak Detector
Aquabus
1-Apex Controller
2-FMM (Meters)
ACC - Solenoid Valve
Power - Energy Bar

APEX Feeder
Aquabus
1-Energy Bar
2-

Breakout Box
1 - Cabinet Lights
2-Future Leak Detectors
3-6 -

FUTURE DOS #1
Aquabus
1-Energy Bar
2-
Power - UPS

FUTURE DOS #2
Aquabus
1-DOS #1
2-
Power - UPS