It'd be extra groovy to be able to have two (or more, but I really want two) hard drive files mounted at the same time. Like, if I have a folder of games on one hard disk and want to copy it to another. Or just have a second disk with the games on it and different system volumes.
As you probably know, but I have to google all the time, the syntax for having multiple connected hard disks is complicated. It looks like this:
-scsi:6 harddisk -harddisk '/path/to/hdafile1.hda' -scsi:5 harddisk -harddisk2 '/path/to/hdafile2.hda'
(See, for example, https://forums.bannister.org/ubbthreads.php?ubb=showflat&Number=123526)
LOVE Ample, hope you'll consider this change.