Universal file dialog interface?

[kendonB]

I use the following commands (or slight variants) in some AppContexts for navigating through a file dialog box. Is there a way to make this universal? Particularly the file list, navigation pane, and filename specs where the number of f6s can vary across file dialog boxes.

	"get up":                                
	    R(Key("a-up"), rdescript="RStudio: Navigate up"),
	"get back":                           
	    R(Key("a-left"), rdescript="RStudio: Navigate back"),
	"get forward":                        
	    R(Key("a-right"), rdescript="RStudio: Navigate forward"),
	"file list":                         
	    R(Key("a-d, f6, f6, f6"), rdescript="RStudio: Files list"),
	"navigation pane":                   
	    R(Key("a-d, f6, f6"), rdescript="RStudio: Navigation pane"),
	"filename":                   
	    R(Key("a-d, f6, f6, f6, f6, f6"), rdescript="RStudio: File name"),

[LexiconCode]

I see dialogues are outside AppContexts.