spreadsheet-type field

[Barry Levine]

So we've got this very nice spreadsheet kind of field that one can use 
for a grid of cells if one carefully intercepts all user mouseclicks 
and keystrokes to make sure that the user doesn't click where he should 
not or type what he should not.

It seems to me that this type of field is somewhat half-baked in its 
implementation. I would think that, at a minimum, one should be able to 
enter the number of rows and columns (and not have the user be able to 
expand beyond this). It would probably also be quite useful to set the 
column widths (although, if I remember correctly, this can be done 
through Transcript).

Is anyone using this type of field and, if so, is there a simple means 
to define the number of rows and columns?

Thanks,
Barry