How to combine multiple 2D arrays

[nepai]

I have this code, two 6x1 arrays and I want to combine them to make 6x2:

Sub CombineArray()
    a = Evaluate("INDEX(ABS(A1:A6),)+ INDEX(ABS(B1:B6),)")
    b = Evaluate("INDEX(ABS(C1:C6),)+ INDEX(ABS(D1:D6),)")
    
End Sub

Can I combined it without using loop?
If its not possible, how do I combine it using loop.

These are only part of my logic. What I want is to combine multiple arrays,
say I have, 6x1,6x2,6x3 etc. and combined into one 2D array 6x6.

[snb]

Sub M_snb()
    [A1:F6].Offset(, 9) = [if(column(A1:F6)<6,A1:F6 + offset($A1:$F6,0,1),A1:F6)]
End Sub