Thank you for your work on FreeFileSync. I am a new user and I have found your program very intuitive with these exceptions.
Earlier today I was using your program and unable to set individual file direction when the compare mode was 'File content'. I've since discovered that comparing via 'file content' sets the category/action column to 'Category' each time it is chosen, and in that mode the menu entries to set the individual file direction are unavailable. That was very confusing and took a while to figure out. Also I notice that depending on what compare mode is used the icons are different and that's also confusing.
For example today I found some VMWare .vmem memory files that were corrupted in their backup location (right side) and I want to overwrite the corrupt backups using the originals (left side).
When I had my file compare method set as 'File content' the files were marked using 'Items have different content' (equal sign with slash through it). I expected to be able to right-click on the files and set the direction to the right but I couldn't do that.
When I changed the file compare mode to 'File time and size' the files were marked using 'conflict/item cannot be categorized' (lightning bolt). Then I could set the direction then without a problem.
I don't know of a good solution for this. Eventually I figured out that when I was in 'File content' mode I would have to choose 'Action' instead of 'Category', but I suggest better user awareness of that column, making the icons more consistent depending on the compare mode or maybe moving the category column to a separate column entirely that will just show the category icons.