I am a retired accountant who has loved computers since the early days of Dos (Microsoft's 1st Operating System. I have embraced IT from the very first Microsoft spreadsheet Multiplan through all its incarnations up to 2019 versions,
I love Directory Opus which reminds me of the early versions of Norton Commander although Opus is far more sophisticated,
If I had one gripe it is that I am (old-school) and to really get to grips with a program you need a downloadable pdf manual.
The good old days when manuals were huge volumes are gone but trying to read online manuals is tedious - a pdf version allows you to dip in and out of the material.
However, Opus is a brilliant program and one finds something new every week!