Assign BODS Global Variable from Metadata

Hi Folks,

I am trying to assign DS global variable in a script from a metadata table within DS.  I can do that from a metadata table stored and pulled from a datasource from an external system through a sql command, but I'd like to keep this within DS.  Does anyone know how I can achieve that?

My goal is that for each run (iteration) of the job, the scrip will run first and determine this global variable and then decide on how to proceed with the job.

thanks!!