Create project with the same (duplicate) "Project Name" and "Project Reference"

Hello,

Is it possible to create a project with the same "Project name" and "Project reference"?

We have many projects existing in the system with the status "Draft", and some information is missing while other fields are not editable. We would like to change the status to "closed" or set end dates for projects and tasks. After that, we aim to create new projects/tasks with the same "project name" and "project reference". However, it appears that having duplicate project names is not possible, as indicated by the import reports consistently showing this result.

Are there any parameters that need to be updated to make this possible?