SysQueryForm add field in lookup

I would like to add the field_id in the range lookup to see the true database fieldName but I`m not able to display any row in lookup.

Is it possible to modify sysqueryform lookup?

public void lookup()  // this is what i have tried

{

SysTableLookup sysTableLookup = SysTableLookup::newParameters(tablenum(TmpSysQuery),this);

Query query = new Query();

QueryBuildDataSource queryBuildDataSource;

    ;

queryBuildDataSource = query.addDataSource(tablenum(TmpSysQuery));

sysTableLookup.parmQuery(query);

sysTableLookup.addLookupfield(fieldnum(TmpSysQuery,FieldLabel));

sysTableLookup.addLookupfield(fieldnum(TmpSysQuery,field_id));

sysTableLookup.performFormLookup();

}