An utter deja-vue experience...
This file is made with Qcad 2, following the instructions from the old post.
Open it in Qcad 2 and you see what is meant.
Just in case, here is a screenshot:
Opening it in Qcad 3 does not yield a usable result, neither did fiddling around with patterns, scales and angles.
So... How do I do that in Qcad 3?