Dis-apply Perspective Grid?

[HG11]

Hi, as ever I'm probably missing something obvious here, but if you've worked something up in the perspective grid, then decide you want to revert that element to a 'flat' look instead, is there a way of reverting it back to that pure 2D flat-on look? 

[Monika Gause]

Unfortunately it's not possible to get something out of the perspective grid again retrieving the original flat version.

Unless you used symbols. So in the future when you are not sure about whether to use perspective or not, better either copy the original shapes or turn them into symbols before putting them into the perspective grid.