Freezing the scroll position of text field

[Mif]

How can I freeze or lock the scroll position of a text field so that I can exit it and return the same position. By default it jumps to the top of the field and I have to scroll down to where I left off.]

thanks

[Himitsu]

I know you can do that with a portal, but do it by a field, is a very good question. Let me see if I can find out something.