  In this paper, we present an extension of MadGraph5_aMC@NLO which is able to
evaluate tree-level QCD matrix-elements up to $2\to 6$ (one more particle than
before). To achieve this, we implemented Berends-Giele-like recursion, and
re-implemented the way colour is computed such that we can now expand the
colour matrix in powers of 1/Nc and truncate this expansion to a chosen order.
For high multiplicity samples, even without truncating the colour matrix, the
new implementation offers a speed gain compared to the previous
MadGraph5_aMC@NLO code.
