Please consider changing the syntax for both Generate SQL Creation Script and Current Generate SQL Drop script so as to include the dropping of the all the in-the-way-constraints, before the actual drop command.
Because you really cannot drop a table if the constraints are active on a table so the current drop syntax in Toad-SS has and continues to be of marginal and invalid value.
Lastly, please remove all the fully qualified database name from the Drop statement for it is too dangerous use. Please use a ‘USE command’ to control the drop database location. This later item has been reported as a bug in Toad-SS 5.6 … See more details below my signature.
Current Generate SQL Creation Script where all the script options are set !