ThierryLegault I don't know if this would work for you, but I attach a laser pointer to the side of the AM5 mount so I can very roughly align with Polaris initially, and then refine that doing the Polar Alignment in the ASIAir Plus. I'm not sure if you were looking for something to do a more sophisticated polar alignment using software, but I thought I'd mention this.
I am VERY glad ZWO is working on a multi-star alignment as well! I think that would be a major improvement. (To ZWO's credit, they always seem to be working to improve things!)