how to move selected object , vertice ,edge to center

i mean to the place which i can always see it in center when i rotate

i m a newbie, there are always things i dont understand and my english suxxx i hope i m not making some gramar mistack :stuck_out_tongue:

thank you people

look to the right of the draw type boxes, where you select wireframe, solid etc, there is another drop down (or up) box called’ pivot’ set that to inividual points and then it will rotate the object from its active point (in the middle). Then with the object or whatever you want to rotate selected press the numpad ‘.’ button (the one below num 3 :smiley:
good luck

thank youuu~