How to send messages to global data filter?

[#1]

Is there a way to send messages to global filter to show different filters through scripting ? 

Sometimes I'd like to review/ recall several filter settings or "where clauses" that were previously saved. 

Names Default To Here( 1 );
dt = Open( "$SAMPLE_DATA/Cities.jmp" );
obj = dt << Data Filter(conditional);
obj << Add Filter( columns( :POP ) );
obj << Add Filter( columns( :Region, :State, :City ), Where( :Region == "S" ), Where( :State == {"SC", "NC"} ) );

wait(1);

//This works
obj << clear;
obj << ( filter column( :Region, :State, :City )<< Where( :Region == "S" ) );

//Unable to work once multiple clauses are perscribed
obj << clear;
obj << ( filter column( :Region, :State, :City )<< Where( :Region == "S" & State == "LA") );

Appreciate the help!

[#2]

Could it be as simple as adding the missing ":" in front of 

State == "LA"

[#3]

You might have to divide it into two separate Wheres (no idea why).

Names Default To Here(1);
dt = Open("$SAMPLE_DATA/Cities.jmp");
obj = dt << Data Filter(conditional);
obj << Add Filter(columns(:POP));
obj << Add Filter(columns(:Region, :State, :City), Where(:Region == "S"), Where(:State == {"SC", "NC"}));

Wait(1);

obj << clear;
obj << (filter column(:Region, :State, :City) << Where(:Region == "S"));

obj << clear;
obj << (filter column(:Region) << Where(:Region == "S"));
obj << (filter column(:State) << Where(:State == "LA"));

[#4 · Accepted solution]

Data Filter where clauses cannot be combined (or changed in many other ways), because the expression is not executed, it is parsed to set the state of the each filter item.  If you separate the state into two commands, it should work as expected:

obj << clear;
obj << ( filter column( :Region ) << Where( :Region == "S" ) );
obj << ( filter column( :State ) << Where( :State == "LA") );

[#5]

Thanks @danschikore. I was hoping for a more robust functionality but seems like this is the limitation that I have to work around.