Multiple Select Box queries on same page / table with different data

Greetings,

This is my first post although I have been reading this forum for several months. It has been very helpful.

I am currently trying to find a way to display multiple Select box list on the same form, with independent data from the same SQL table.

Example:

The table I am working with has the following columns:

usergrpid
prtcpid
username

Select Box 1 (we will call Writers) - query a table usrgrpprtcp for all where a specific user group id is specified.

SELECT * FROM usrgrpprtcp WHERE usrgrpid ='0000000156';

The select box data bindings are:
location = record, value=prtcpid display=username

Select Box 2 (we will call Editors)

SELECT * FROM usrgrpprtcp WHERE usrgrpid ='0000000210';

Another list of a different user groups from the same table.

Being new to WebMaker, I am not sure what options are available to me in order for me to achieve this. Do I create new controller somewhere?

If anyone can provide me some insight, assistance or direct me to some instructions elsewhere, I woudl greatly appreciate it.

Thank you,

John