"Table" object in Rev2

[Barry Levine]

How does one specify the number of rows and columns in a table (field) 
object? It seems as if a user may add columns by tabbing out of the 
"last one" displayed.

What I'm trying to do is have a fixed number of rows and columns that 
cannot be changed by the user. Scroll bars may be necessary (and I see 
I can have these simply by clicking the appropriate choice).

Thanks,
Barry