RADIO CONTROLLED conversion for Tethered ROV in Stormworks 

May I suggest different radio channels, 1 and -1. Negative numbers are unique "channels" and most nobody uses them. You can use a function block with the formula x*-1 to invert the number, so a single keypad or up/down counter will work. And because it's always the exact opposite channel, you can use every channel from 1 through to 16,777,216 without interfering with another secondary channel. You just need to avoid using channels that are in use by other systems (like fuel dock gantries).

maybe a time remaining display can help

FIRST!

So I'm having a problem with my ROV where it is not neutrally buoyant unless it has no batteries. I don't know how to fix this issue, and I'm wondering, what did you do to make your ROV neutrally buoyant with batteries.

Also great videos! Could you do a modular engine boat ecu? Please?

Does the ROV auto surface when it runs out of power?

nice work