Honestly as much as I like Save Game Manager I've always felt it was buggy since reading icons was implemented, always crashes after a few deletes or copies, but I need it if I want to delete saves off EmuNAND, that's why I asked if it's possible to be done here.
That won't work because EmuNAND is much slower than real NAND and in order to properly load it "or so I was told" you need to have no more than 4-5 channels installed, now I have a huge collection of games installed on EmuNAND and I could never manage to boot it because of this, always black screens, Cyan told me it's because I got many channels installed and that it's normal this way, I only use it to run games via USB Loader GX and it works fine for that matter!