the batch processor will let create a script file to be run 

the script that will help you rotate the views back to normal and save the changes

is below the firat part rotates the view to top which is always unrotated, the second part saves having send a data point into view 1 the basic default we we all work in the last part saves the settings and  changes permanently …

vi=top;selview 1;filedesign

Not sure how you can make all elements x values suddenly negative  it would most likely be a vba custom built..

I experimented with the ancillary coordinate system I just  made the

x =-10,000,000 and the y=0 ( instead of  x=0 and y= 0)

this results all elements  -10, 000,000 + x original values =changing by difference BY x of – value..

eg if original xy= 1000000,1000000 would become -9000000,1000000

I used 10 million so as to make sure all elements would become negative x

this assumes that all your elements are much smaller than + 10Million hence all x must come out negative.. so if the values don`t really mean anything to you and  you just want to shift them a relative amount into the negative quadrant this would work..

So now I think you could record a vba macro to change the ancillary coordinate system.. and  batch process that …

Hope this was of help .. it was a real fun challenge but I don`t think the neg  coord part was what you really wanted… try posting to BE user group at bentley…