yes, the current implementation of entity container is by a QList, which is an ordered container.
The feature needed is to implement the GUI to allow user access to the internal order.
Mike wrote
Thanks for the quick response.
For me the drawing order seemed to be related to the order the lines were added to the drawing rather than which layer they were in.
I have a workaround now - if I cut a whole layer and immediately paste it back in again, all the lines in that layer are then drawn on top. I do that for each layer starting with the layer I want on the bottom and ending with the layer I want on top.
Mike.