Welcome Login and Register page change

We have an updated version of our Portal > Welcome Login and Register page which I would like to make Live. I’ve done this before and recall there was a reference to this page somewhere in Liberty Create which needed updating to the new page as well - but I cannot, for the life of me, find it anywhere!

I’m pretty sure it was a variable or something similar, but cannot find it anywhere. I know I can simply edit the current welcome page with the required changes, but I would like to know if the above stuff about changing a setting to point at the new welcome page is a false memory or not!