BODS job requested by id?

Hello,

In my BODS project, I'm trying to get the "job requested by id" into a global variable. For example, if I try to execute a job from my Designer, I would like to get my windows user id into that global variable. If some one of trying to execute a job from management console, I would like to get the windows user id of that machine. If the job is being executed from a 3rd party scheduler, I would like to get the windows user id of that machine. I'm not sure if this possible in Data Services. But, can you please let me know if this can be done in DS?

Thanks

Pradeep