I have been a huge fan of the table builder feature in Ad-Hoc since its introduction in v3. Since Adobe is obviously trying to push everyone to Workspace, I would like to see the table builder brought into Workspace. Personally, I plan most of my reports out in my head before I begin making them and often times I need to break down past 1 level. This can become overwhelmingly tedious in Workspace. This would also allow modification of existing tables like swapping a dimension up and down the build hierarchy as well as allow you to have a predefined search value on all second, third, etc. level breakdowns. Lastly, this would TREMENDOUSLY speed up report creation without having to wait for every dimension, metric and segment to load after its added to the tables.