Ability to view accumulating feature cache during running workbench

When I have a job that runs for 5-15 minutes (and this is with a subset of data) it would be nice to be able to sneak a look at the cached features at any point during the running workbench. I could click on the green loading box and see what features have loaded so far. This way I can be QC-ing output before the workbench has even completed running.