Adding my voice to the folks asking for this feature - it's so table stakes I was stunned to discover it was missing when I started exploring my newly-purchased Affinity Designer install. I also maintain an Adobe Creative Suite subscription, so I can use Illustrator to do my tracing for now, but the goal of picking up Affinity was to eventually switch away because I like the overall user experience more, so please continue to prioritize this - so far it's the only thing I've discovered is missing to be able to adopt Affinity full time.
