Using a dropdown menu with arrow keys in Photoshop This may be a tad specific but it's one thing that irks me with OS X.

In Photoshop, if I want to change a layer style from 'Normal' to say 'Overlay', I need to click the dropdown list and select 'Overlay'. If I then wanted to change this again, I can't just use the keyboard buttons to scroll up or down the list - I need to go in using the mouse again and it's a bit of a pain.

Scrolling with the arrow keys works fine on other drop down lists like fonts etc.

Any ideas?
I am not sure if you can do this with the arrow keys but there are shortcut keys for navigating the layers box

Changing layer styles


  (with layer selected) hold down ⌥ + ⇧ (option &amp; shift) and use the + or - keys to cycle through the various layer dropdown  


Navigation of layers


  UP  ⌥ + ] 
  
  DOWN ⌥ + [


Repositioning a selected layer


  (with layer selected) Move up a layer 
  with ⌘ + ]
  
  (with layer selected) Move down a
  layer with  ⌘ + [


these work for me with the CS5 version of photoshop