I'm not familiar with SAS BI Dashboard, but there is some how-to docs in the SAS Knowledge Base (and other docs on the web) that could point you in the right direction. Here is a sample at http://support.sas.com/kb/34/704.html (applies to BI Dashboard 4.2).
Reading the instructions, it appears that you need to have libraries defined (e.g. the SASHELP library used in the example must be defined first). That would be consistent with how SAS functions in all of their other products.
Here also is a link to their BI Dashboard Guide (v. 4.3) http://support.sas.com/documentation/cdl/en/bidbrdug/63081/PDF/default/bidbrdug.pdf