in the case of character modeling is it possible to mirror bones so each side will be perfect?:spin:
Sure, check this out:
Look down where the Armature is started and using the X axis.
Or you can select the bones that you want to mirror , put the 3D cursor at the center :
And make shift + d , and directly , S , X , -1 …
If you’ve named your bones correctly ( with .L and .R at the end of the name ) , you can flip the mirrored bone name by pressing “W” and “flip name” .
Peace :spin:
Oh, yes, that just fixed an Xmirror problem easily 
Thank you!
And Shift-E rocks even more, too bad I already extruded the bones…