Is there a shortcut to open a folder in a Open File dialog?
Solution 1:
Return
(with the ↩ symbol) opens the folder for browsing its contents (unless you're in column view). You need to press Enter
instead. It's a different key, and its symbol is ⌤.
If you don't have that key on your keyboard, you can press Fn-Return
to achieve the same effect.
Solution 2:
Not all applications allow you to open multiple documents simultaneously but you can open an entire folder from a BBedit (Version 10.0.1) Open Dialog by using the Column view, selecting the folder you want to open, and hitting return.