separator and disable item in GtkTreeView

[Liu Neo-W4135C <W4135C motorola com>]

Title: Message

hi, all

 

2 questions:

 

1)is there a way to insert a seperator in the GtkTreeView, like . if no, will it be included in the coming feature and when?

 

on line friends -- separator, left alignment with icon column

icon1  anderson

icon2  smith

off line friends -- separator 

icon1  oracle

icon2  tank

 

 

2)is it possibel to disable an item, and once navigate in the view, focuse will not on the item and switch between above and below one?

 

many thanks in advance and merry chrismas,

 

ln