Vim: How to insert in visual block mode?

Question

How can you insert when you are in visual block mode (by pressing ctrl-V) in Vim?

Answer 1

You might also have a use case where you want to delete a block of text and replace it .

Like this

Hello World
Hello World

You can visual block select before "W" and hit Shift+i - Type "Cool" - Hit ESC and then delete "World" by visual block selection .

Alternatively, the cooler way to do it is to just visual block select "World" in both lines. Type c for change. Now you are in the insert mode. Insert the stuff you want and hit ESC. Both gets reflected with lesser keystrokes.

Hello Cool 
Hello Cool