Combining Concatenations

Concat 3 through 6 is no longer in the XOD/Core. When I looked them up in XOD Documentation, it says
Deprecated: Use xod/core/concat with adjusted arity instead. I have no idea what this means can anyone help? I would like to know how to add 2 o3 strings together, including variadic, in any order I choose.


Use concat and drag its right border to add more inputs. See for a GIF