Styleguide owners can transfer the ownership of their styleguides directly from the “Styleguides” tab by clicking on the settings icon that appears when you hover over it.
Transferring a personal styleguide to your workspace
If your team is on the Team, Organization, or Enterprise plans, you can transfer your personal styleguide to that workspace from the “Styleguides” tab.
Hover over a styleguide under your “Personal Workspace”, click on the settings icon. You'll see the name of your workspace after you click on the “Transfer Ownership” option.
☝️ You can only transfer a project if your role is Editor, Admin, or Owner in the workspace.
When you transfer a parent styleguide, all the child styleguides will also be transferred without losing their parent-child relationships.