what are they keys when you want to swap two objects?
say a sphere on the left and a cube on the right.
click the keys and they swap places.

I don’t think there is a hotkey to swap two objects, but you can use Ctrl-C in Object Mode to copy the attributes of the active object (last selected) to all other selected objects.

Use an empty to hold one object’s attributes while you manipulate it to the other:
e := n;
n := m;
m := e;

Hope this helps.

Select both objects and scale -1 around the appropriate axis.


Ah, brilliant! (I do that a lot :o).

If you press Ctrl-Period (on the alpha keyboard) you’ll get the individual objects center. Then click the little […] button next to the Pivot Point button to simply move the objects… Then, if you need, rotate 180…