With TWc the gotoPlugin did a similar thing.
If you type a tiddler name and it was excludeLists, it wasn't listed in the drop down. ... but if you hit
ctrl-enter ... it was opened anyway. ... So if you know the name of an eg: shadow tiddler, you don't need to navigate the tabs.
If a tiddler name was new, it did the same as if you click a "missing link" ... it opens a new tiddler with that name.
I think this behaviour could be implemented, whith the new keyboard handling.
@jeremy
what do you tink?