It’s the Favorites sub menu in the File menu:
The content of this sub menu is generated on the fly, so it will always contain the current entries of the Favorite Files Expert. Since that expert’s dialog is non modal, you can change the configuration and immediately see that the Favorites sub menu content changes. All entries are prefixed with numbers 0-9 and then letters A-T, so there is a maximum of 10+20=30 entries on each level. In addition there is X for Configure which opens the Expert’s configuration dialog:
Unfortunately this new feature will only be available for Delphi 7 and later. I was unable to get it to work in Delphi 6. Sorry about that! But maybe somebody else wants to try it? The source code is here.
There is no release with this feature yet. To get it, for now you have to compile your own GExperts dll which isn’t exactly rocket science anyway.