Hi Laura, I'm not sure if this will work with your ATTR calcs, but I recently helped someone move all their measure axis labels to the top of their table as follows:
1. Put two copies of every measure on the columns shelf - set every second copy to dual axis - then make sure to sync the axes and reset the mark type if necessary.
2. Right click the lower axis for each measure, set Title to blank, set Tick Marks to none. You should get: