When I set up my tree about 13 years ago, I had complete control over editing anything in my tree. I subsequently added others to help me fill in the gaps. I lost interest for quite a number of years, after finding that no-one was adding much. However, I've gone back now and found that the tree has blossomed with many relatives contributing. But I can't seem to find a way to edit anything!!! My mother recently died and I need to add her death date. There are also prompts for birth surnames for both her and one of my daughters. I can see them in the tree, but can't find a way to edit or add any of these details. (I still have a basic membership, and won't likely upgrade, if that's a factor. Surely, since it's my creation, I can still edit it.
Editing my tree