I am not aware of any simple way to reorder the Table Scripts. However, below is a simple script I put together that will alphabetically sort the scripts in a given data table.
Names Default To Here( 1 );
dt = Open( "$SAMPLE_DATA\big class.jmp" );
// Get the list of scripts
names = dt << Get Table Script Names;
// Setup a list to sort alphabetically
namestosort = names;
Sort List Into( namestosort );
// Pull into a list all of the scripts
dt << Select Properties( names );
proplist = dt << Get Selected Properties();
// Pass through the sorted list, deleting each script and
// then resaving it
For( i = 1, i <= N Items( names ), i++,
dt << delete Table Property( namestosort[i] );
Eval( Parse( "dt<<" || Char( proplist[Loc( names, namestosort[i] )] ) ) );
);
Jim