How to place structures rotated randomly but around the origin

I am happy mcreator added the random mirror and rotation to the place structure, however it rotates the structure from where you place it so you can not be specific to where you can place it if it is randomized, if you do not understand what I mean than try making a square 6x6 structure and use the place with a random mirror or rotation and the position will be "different" 

I would like to know if I could give the structures random rotations but still give exact positions.