It depends on the relationship between you and Shapcott-68.
First off, you have to remember that there is no such thing as "my tree" on WikiTree. It is all one tree for everyone.
What you can do is connect an existing profile as a parent, child, sibling of spouse of another profile.
However, when I look at your profile (Shapcott-193) and Shapcott-68 they are actually already connected. You can see the relationship here.