New to Affinity. Using a 2016 MackBook Pro. Challenged by how to use Marquee selection tools. Working on a photo editing project of a bronze plaque tarnished by lichens, some of the letters all but illegible. I want to duplicate letters which are still clear and replace those that are tarnished. Some letters I will use more than one time; others only one time. Original photo was a jpeg. I opened it and saved it as an Affinity photo to be sure I did not destroy the original.
Sometimes when I click on the Marquee icon in the tool bar I get nothing; all choices are greyed out. Sometime I can select the letter I want, but it does not appear on a separate layer. Other times my selection is surrounded by blue stars. Do not understand what is happening. I really want to master this cut-and-paste/cut-and-duplicate technique since I used it frequently in PS Elements. Though I have watched many, many video tutorials, the process is still unclear to me. Has anyone created a Users Manual?