I noticed that the Midibox64e tutorial doesn't even mention a patch select mode or that it comes after the bank select.
But I did find this in the changelog.
"V2.2
a patch mode has been implemented which can be selected as an alternative option to the common "bank" mode in main.asm
In patch mode, each BankStick contains only one bank configuration (means: encoder/pot/button/label setup), but 128 snapshots! This allows you to prepare one configuration for your MIDI gear, and to store/recall/morph up to 128 scenes.
there are two new SysEx commands for storing/restoring patches
patches and banks can be changed from external with a "Program Change" command. The channels are specified in main.asm. Default: Channel 16 - Banks; Channel 15: Patches"
Looks like I may be in a mode where there is all snapshots....but i don't seem to be able to recall or scroll through those snapshots so maybe not.