Thanks Rob and Guilherme for responding.
Rob,
I was thinking of using the FM: DAY_ATTRIBUTES_GET, but this i could only use for the sign 'BT', for rest all i need to use if conditions to calculate.
Guilherme,
Yes, i had this thought, but was not sure, because the both conditions overlap.
But just tested it and it works.
Thanks both of you for your time.