change angle to a group of objects in editor

[william1 0]

i'd like to rotate or change the angle to a group of objects in the editor to save a big work of placing objects , but i don't know if it is posible , anyone knows ? thanks

[fasad 1]

Select units mode (F1)

Select the objects (they will appear in stronger colour).

Hold down shift, click and drag on one of the selected objects.

[william1 0]

thank youuuu !