Help on a transition // Alpha.Remove?

[DuarteBarbosaPT]

Hi
I want to do something like this:
I have a text like:
Hello
And i wan't 'e' to vanish and push the text to the left so that it says together like this:
Hllo

I don't know how to push the text to the left after i do Alpha.hide.
__

In other ways,
Is there anything like a Alpha.Remove so that the next word I insert goes in the position that I removed.

Can you help me?
Thanks