First Steps
You know what the owner and a guest can do in a project, and how ownership passes to someone else.
A member is anyone who belongs to a project, the owner included. A guest is every member other than the owner.
| | **Owner** | **Guest** | | ------------------------------------- | ----------- | ---------- | | Number per project | Exactly one | Any number | | Open **Project Settings** | Yes | No | | Rename, archive or delete the project | Yes | No | | Add or remove guests | Yes | No | | Hand over ownership | Yes | No |
If you are the owner, open **Project Settings** with  **Open Settings** in the project's row.
The **Role** column of the projects list shows whether you are **Owner** or **Guest** in each project.
KOSMA has no co-owner and no second administrator. For someone else to get the owner's rights, the owner hands over ownership to that person. After the handover, the previous owner is a guest in the project. They can still open the project and work in the datasets shared with them, if their licence allows it. Only the new owner can hand ownership back. The steps are in [hand a project over to someone else](/kb/article/hand-a-project-over-to-someone-else).
As long as you have not shared a dataset with the guest, the project does not appear in their projects list. Under **Guest Members** in **Project Settings**,  next to the guest's name shows this. To share a dataset with a guest, see [how sharing works](/kb/article/how-sharing-works).
To read a shared dataset, any licence will do, Free included. A guest can edit a shared dataset only when both conditions hold:
- The dataset is shared with the guest for editing. - The guest's licence allows editing. See [what your licence includes](/kb/article/what-your-licence-includes).
Markdown