Removing, adding columns

["Virgil Frum" <virgil(at)livius(dot)net>]

Cannot remove then add a column in table's properties window - Columns tab. 
SQL tab shows only ALTER TABLE table_name ADD COLUMN column_name; that with 
DROP COLUMN vanished. So I'm forced to do it in 2 steps. Would be great to 
do it in one step or pressing an Apply button after remove operation.

Virgil