Simples: I deliberately didn't do more than I had to to get this operational! (Lazy so-and-so, I know).
You can do this by drag-and-dropping a disk image from the LIB: window onto the "Trash Can" widget in the LIB: window title-bar (top left corner).
The other 2 operations you can do are:
- Drag-and-drop a new disk image into the LIB: window from your local PC file explorer/finder - this is the one everyone should know.
- Drag-and-drop a disk image from the LIB: window onto the "Download" widget in the LIB: window title-bar to download a disk image from the LIB: to your PC
With these 3 simple (atomic) operations everything else is within your grasp:
- Want to rename an image: download it to your PC; rename it there; upload it back to the LIB:; delete the original one.
- Want to create a blank disk: download any existing image to your PC; rename it there to say 'blank.dsk'; upload it back to the LIB:; mount it; do an ERA *.* in CP/M. Blank disk!
The combinations and permutations are endless. Think of it like recipes in Minecraft, then again, maybe better not.
But this simple combination of atomic operations saves a huge amount of work developing features in to the Desktop UI that won't frequently be used.