useful shortcut.

1. How to remove unused using.

Press ctrl and continuously press G and R.

You should not release the ctrl until pressing G and R.

2. Cutting line and past it as a new line in the middle of line.

Press ctrl + x where you want to cut the line.

Press ctrl + v where you want to paste it on the before line.

press ctrl + c

press ctrl + v

3. auto complete

Write if and press tab twice then the 'if' will change as follow.

            if (true)

            {

            }

After you change the true value, Hit enter then cursor is located in the middle of the brace.

You can use it at the almost reserved word.