How to expand scrollRect content without having normalized position snap back to 1 (ScrollJacking)

Hi, I have a scrollRect in which I can add/remove objects, but if I am at the bottom of the content i.e normalizedPosition = (0,0). It will snap back to the top of the normalizedPosition = (0,1) How can i stop this from happening?

What I want to happen is, if the normalizedPosition is 0.5f and I add a gameObject causing the scrollRect.contentto expand, I want the normalized position to not move, but still allow the content to expand.

I have tried doing something like:

currentPos = normalizedPosition;

normalizedPosition = currentPos;

which I am getting a currentPos then applying currentPos within an event. But this caused the scrollRect to snap to top and then snap back to position... obviously not ideal

I hope this makes sense.

Any help would be much appreciated, thanks.