I finally had some time to work on FrodoDS again after nearly a year without an update, I have added save snapshot support and loading snapshots directly from filelist.
Will save the snapshot using the currently mounted .D64 name changing extension to .FSS. This new functionality is on the button X.
Also now when it starts the filelist will no longer popup automatically, so after the c64 boots up, press the left trigger to bring up the filelist, now if you select a snapshot file ending in .FSS, it will automount the same name with .D64 and then autostart the snapshot.