I give up. After spending nearly 25 minutes trying and trying, I could not figure how to add the Wolfram workbench to Eclipse. Got stuck at the "add software" stage. step 4 on this page.
support.wolfram.com/27221 Even though I downloaded Workbench and extracted the zip file OK. Instruction on the web page are not clear and do not match what I have downloaded. someone at WRI should really improve these instructions. Nothing I tried worked. my limit on trying something is 30 minutes :)