Thanks for ideas.
I've done some research in terms what I am trying to achieve and it looks like the best way to go ahead is by using imported properties (I need to customize at least 5 of them, 2 in the security header). I would like to use excel file to store data (export from db) and then values for each iteration will be set using groovy scripts (separate script for parameter). Can I specify column for excel file in groovy or should I split data in separate files (for example *.txt), then each script would build its own array which will be used for setting values? How can I ensure that sets of values do not overlap during load testing and each set of values is unique for each running thread?
