[8 Years Later, Still NO AutoTrace (convert raster image to vector)]

Im sure Affinity will make really good when thay do it.

[Let us flag a layer as non-printing]

As Ioukash but put all the guide lines in one group mark it "don't print" and toggle visibility off on that group before printing.
attached is a template I made for printing 11oz mugs so you can have a look, drop on pick, line it up toggle of "dont print" and print.

template mug 11oz.aftemplate

[8 Years Later, Still NO AutoTrace (convert raster image to vector)]

I thought V2 would have AutoTrace, SO disappointed thinking twice about upgrade!

[Plugin for Artistic Effects]

have a look at this for free its got loads https://www.youtube.com/watch?v=p3h8SASo1nI