In both cases you’re right. Thanks for catching that.
1) Deletion from the original location happens only w/ auto adding. My request should be rephrased as:
– ability to remove files from the library without deleting them from the “Calibre Library” folder. The pop-up window warning “The selected book will be permanently deleted and the files removed from the calibre library” when hitting delete should ideally have a button to leave the files intact so they can be manually moved if so desired.
2) When using the auto adding feature for AZW files, I actually get this same error either way, whether I put only the AZW file in the designated auto adding folder or all the accompanying files with it:
https://www.screencast.com/t/L1mpkHIhvv. However, if I drag & drop the AZW file with auto adding enabled or use the manual methods then I get no DRM error. This would seem to be a bug.
Note that if I insert this image it won't show up. I get an exclamation point icon instead which I assume means that it can't load.