[ReVo_]

You want something like this:

Code:

enum IDs_Enum // The enum I'd like to duplicate
{
	MyID,
	YourID,
	OtherGuysID
}
enum Base_Enum
{
	we[IDs_Enum][5], // Duplicating the enum 5 times per each Base_Enum instance
	OtherData,
	MoreData
}
new B_Enum[15][Base_Enum];

but you cant,
B_Enum[0][we][MyID][0] = 5;
will be a 4-D array and you can have at max 3d arrays.

Code:

enum Base_Enum
{
	we[IDs_Enum], // Duplicating the enum 5 times per each Base_Enum instance
	OtherData,
	MoreData
}

is valid.