How to rewrite VBO results? In the 'Rewrite Results' section of the 'Configure Field' popup, there are several options to rewrite the results - but not in the way I need.  I want to substitute particular strings in the output.  

How can I do that?
For string changes your best bet is altering the view in a custom module. Use  hook_views_pre_render to modify the output of the fields prior to the view result being fully outputted.