[NTG-context] Is there any "leftoffset" and "rightoffset" possibilities for \framed (in natural tables) ?

I have the following challenge: I am using natural Tables (e.g. \bTABLE) and want to have a larger left/right offset than the top/bottom offset for the table cells. The "offset" parameter (which I believe is from the \framed command) works fine, but assigns equal offset to all sides of the table cell. Does anybody have a tip/solution on how to get individual left/right/top/bottom offsets? Regards, B. Tommy Jensen