[R-gui] Preventing gdf from adding rows and columns to a data frame

[Hana Sevcikova]

Hello everyone,

Is it possible to restrict gdf (from gwidgets) in a way that it adds 
neither rows nor columns (and possibly doesn't allow to change row and 
column names)?
I'd like a widget where the user can only edit the values of a data 
frame, not change its dimensions. I really like gdf but the feature of 
adding rows and columns would be quite confusing in my specific application.

Thanks a lot,

Hana