It used to be possible and easy, but that hasn't been working right for me lately. I think that it's possible that others (like me) are having issues with syncing and re-uploading their trees. That seems to break my link to that tree.
If I want to find other trees with that person in it these days, I go to the person, click on the Hints tab, the click to "Search historical records for ......... ". On the results page, pick "Family Trees", then "Public Member Trees". You will see all of the trees that have your person in them. Check the name by the tree as it is not set up to be an exact match.
I've even found new/more information this way. But do NOT assume that everything in a tree is correct. You need to research each fact to verify it. I have found multiple trees where the child is born before the father, or after the mother's death date.