I left one step out.
While still hovered over the one you just made small, press "b" to browse its hierarchy. DirectoryEntry pops up. Drag #name and #fileSize to the one you made small. Now Shift+click for its tool menu and select "as list entry".
Before you can do the next step, below, you have to remember the just-created list-entry. So Shift+right click on the list entry and select "manage views...". Place the mouse-pointer into the first black-box of the message, "Remember view as: [ ] for all kinds of: [ ]" so that the box highlights green. These black boxes are "parameter-holders" for invoking messages that require parameters.
Now type 'list entry' INCLUDING the quotes in the left box. You may drop any object or type any valid Smalltalk expression into them. You may click in the right box to select DirectoryEntry. Because both boxes are populated, the message is automatically executed. You may now close this "dialog" by pressing "x" while the outer blue box is highlighted.
NOW, you may do this step, below..
Finally, right-click on the actual Collection object, carefully getting outside that black border (its ScrollPane or something) but still on the Collection so that it is outlined in green (this part is a little tricky), and select "elements view | list entry".