Released in version 5.0, you can now add your own Auxiliary Upgrade Consoles, in whatever size or shape you want.
It's your very own cyclops upgrade console made easy!

The new class AuxiliaryUpgradeConsole will provide most everything your aux upgrade console will need to interact with the Cyclops and the MoreCyclopsUpgrades API.
To get started creating your own Auxiliary Upgrade Console Component, create yourself a class that implements AuxiliaryUpgradeConsole.

using MoreCyclopsUpgrades.API.Buildables;

internal class MyCyclopsUpgradeConsole : AuxiliaryUpgradeConsole
{
    // Override any of virtual members and customize how your upgrade console behaves.
    // If you intend on using using all default behavior, this is all the code you need here.
}

This base class will actually handle a lot of things for you, such as:

• Managing the Equipment events
• Handling player interaction via the HandTarget methods
• Reading and writing of custom save data for the console and its installed upgrade modules
• And most importantly, connect with MoreCyclopsUpgrades so it functions just like the original Auxiliary Upgrade Console.

All this is to say that the only thing you will really need to take care of yourself is how you want your aux upgrade console to look and if you want any extra code to run when upgrade modules are added and removed.

Like any Buildable item you mod into the game, your aux upgrade console must have a Constructable component.
If your prefab didn't include one already, you will need to add it yourself.
And don't forget to set the allowedInSub value of the Constructable component to true.
You can use the original AuxCyUpgradeConsole as an example.

// In your Buildable class
public override GameObject GetGameObject()
{
    var obj = GameObject.Instantiate(<your prefab here>);
. . . .
    Constructable constructible = obj.EnsureComponent<Constructable>(); // You can use GetComponent if you know it will be there
    constructible.allowedInBase = false; // Do not allow this in a normal base
    constructible.allowedInSub = true; // Allow only in the Cyclops sub
    constructible.allowedOutside = false; // Not allowed outside
    constructible.controlModelState = true; // Keep this enabled
    constructible.rotationEnabled = true; // Up to you
    constructible.techType = this.TechType;
    constructible.model = <your chosen or custom model here>;
. . . .
    return obj;
}

Once you have your buildable set up, remember to add your aux upgrade console component to the GameObject.
The code in the AuxiliaryUpgradeConsole base class will take action once you build your custom console in the Cyclops.

// In your ModPrefab class
public override GameObject GetGameObject()
{
    var obj = GameObject.Instantiate(<your prefab here>);
. . . .
    obj.AddComponent<MyCyclopsUpgradeConsole>(); // Implements AuxiliaryUpgradeConsole
. . . .
    return obj;
}

To maintain some consistency and prevent any one upgrade console from being too powerful,
all upgrade consoles are limited to six slots. No more, no less.

The AuxiliaryUpgradeConsole class offers several virtual methods you can override.

There are various public and protected members in AuxiliaryUpgradeConsole that you can use from your own code.