Re-arrange lines when adding new if statement

[bghayad]

Hello;
As we know that spaces is important in the coding.
I am asking: when we need to add if statement or any control statement for existed code, that will require to do shifting for the ALL lines to be under this if statement (or for loop or any control statement), this is too much hard work and consuming time.
How to overcome this?
I am programming using vi editor in linux.
Regards
Bilal