How to edit multiple locations simultaneously in Vim

Question

In certain text editors, like E, I can select multiple locations and, as I type, all the selected locations get replaced with the characters I am typing.

For example i

Answer 1

Have a look at SnippetsEmu. It should be doing something very similar to what you need.

It emulates TextMates snippets. You should be able to have one snippet with the same tag repeated, and editing will do the right thing, updating the same tag in all locations, as you type.