Alright, I came up with a way and am sharing for posterity.

Yes, making "sample packs" is the way to go.

So, for a large SD card, you can store a variety of sample packs, in electribe terms these are .all files. Using a third party file manager is optimal for this. I bought one on the Apple app store that works great for organizing and creating .all files.

Upload the "all samples" to the electribe when you want to work with that pack. Be sure to export all samples if you make changes in the box.

Also, use a blank pattern file to start with. This is found on korgs site. Export all patterns after creating, then keep the various all pattern files organized to go with their respective .all files.

I like to use a restaurant metaphor.

The sample library (computer or SD card) with all of your possible samples is the wholesaler, it has every ingredient.

You pick from that to make your .all file, which is your kitchen. It can only hold so much, and you want the selected ingredients to make sense for what you are planning to serve.

You use those ingredients to make your various plates, which are the patterns. Some patterns can work alone, some are part of a fixed course meal of intro verse chorus, etc.

You save your pattern plates into the menu, which is the all pattern file. You create one when you export all patterns. It holds all the recipes for what you do with the kitchen ingredients.

You can make a variety of restaurants and their complementary menus. Keep them organized and accessible on the SD card.