Hi Richard,
For your second question, I would give a try with below filter and check if it is working. I don't have a system to test.
FILTER SELECTION_EXP:0/PARAMETER=LOGONDATA
FILTER1 SELECTION_EXP:0/FIELD=UFLAG
FILTER2 SELECTION_EXP:0/OPTION=EQ
FILTER3 SELECTION_EXP:0/LOW=0
Kind regards,
Jai