Welcome to Scrivener!
Yes, you can sort items, but you need to use the Outliner view mode instead of the Corkboard. Use the View/Outline
menu command to switch to that view mode, add the label column if necessary (there is a sub-menu in the View menu for that), and then click on the label column header to sort by it (just like sorting in Finder and most other programs with this kind of column-based list view). Click again to sort the other way, and finally another time to disable sort.
This need some clarification I feel. Index cards on the Corkboard are a visual representation of Binder items, you can kind of think of it them like fancy icons that you can type info into, but they always represent items (or documents, if you will). It may be that you have no text typed into the main editor for these 95 cards, that is fine and a perfectly legitimate way to use the software, but there isn’t a hard distinction between cards that have text and cards that do not. Just think of them as empty text documents, if that makes more sense (they aren’t really, but I’m trying to explain this without getting too technical).
For short little snippets like you describe, I think putting all of the content into the synopsis, the main text area on the index card, is a great way to use Scrivener as that information is right in front of you in Corkboard and Outline mode. The program is designed to be used that way, and you are never obligated to “open” the card in the text editor and start typing into it.
If you’re thinking of the icons in the Binder in terms of how Finder works, where icons mean something more along the lines of “this is what program it will load in / this is the type of file it is”—then I can see where you are coming from. Some things in the Binder may have an index card icon and other things have a sheet of paper icon. That’s more of a status indicator than a type. This is an outliner, not a file manager, and that icon is just letting you know how much data a particular thing has. You can at a glance see if something has text content by its icon, without that indicator, you might not know it without manually going through each card one by one. An empty page indicates the item has nothing typed into the synopsis or text editor, an index card means a synopsis has been provided and finally a page with scribbles on it means it has text. That’s all you’re seeing here.
If all of this is wildly confusing, I definitely recommend the Quick Tour in the user manual as it goes over all of this in a step-by-step fashion, so you can see things change as you use the software, and shouldn’t take longer than 15 to 30 minutes to complete. The main interactive tutorial in the help menu is essential, too, but you’ll need to set aside a little time for that.
Now, if you want to get technical, it is true that if the text editor for a card is empty, there is no attached document. That’s a good thing to know if you’re worried about creating hundreds of literal document files on the disk that you don’t need—you aren’t actually doing that. The software only creates a document on the disk if it needs to, saving resources by doing so. But, that’s entirely a technical distinction. For your purposes, within the user interface, it doesn’t really matter if a card has text in the document area or not. You can think of it as being the “same thing”.