you could also read the manual...probably not so sexy though, watching instructional videos is more convenient these days.
But anyways, Phocus is not so complex as e.g. Capture One and thus it is pretty easy to get the basics. And IMO forget about all that stuff of dodging&burning with layers etc. etc. I'd do that all on PS, much better there. Just use the basic tools under "Adjustments" in Phocus: exposure, curves, WB, color adjustments (if needed), keystone corrections, sharpening, cropping, lens correction always activated...then export to 16 bit TIFF and import into PS and work from there if needed. A question of one's personal workflow. Btw, when using Phocus to import you can set immediately all IPC and personal information as Exif for all imported images. But this you can also do later under the "Info" tab.