Hi emmrecs01 Certain tools and features have been kept app-specific; such as the Liquify Persona in Photo, the Export Persona in Designer etc and Plugins are part of this. Of course, you can still use the 'Edit in Affinity Photo' option to access the full app, but AFAIK we don't plan on supporting Plugins in Publisher currently. I'll raise this menu entry with our devs now, thanks for your report!