Grid Editor Tab Stops

Hello. Does anyone know how to properly set tab stops within the Grid's editor? I have numerous columns that are disabled, yet it looks like I am still required to tab through all of them. I tried by creating a TextField, adding a Tab Listener to it, then setting this field as the EditorField of the column, but the tab listener never fires. 

... How about instead of setting tab stops, making it so it skips over disabled fields?