Skip mandatory BEx prompts in Design studio

Hi I have a BEx query with about 10 prompts 4 of which are mandatory and I want to bypass them. I tried 2 ways

1. created global variables for 4 mandatory prompts as On variable initialization, added on variable initialization code and included DS_1.loadDataSource() on startup code then set 'load in script' fro Data source to true

2. created global variables for 4 mandatory prompts as On variable initialization, added on variable initialization code and set 'load in script' for Datasource to false

But none of these seem to be working and still see the prompts

Any help would be appreciated

Krishna