You can still use old, short template formula, without Heading!
{{userpage/sandbox|username=your username}}
| Template name | User page | User talk | Contribs | Projects | Sandbox |
|---|---|---|---|---|---|
| Userpage | Yes | Yes | Yes | No | No |
| Userpage/projects | Yes | Yes | Yes | Yes | No |
| Userpage/sandbox | Yes | Yes | Yes | No | Yes |
| Userpage/prosan | Yes | Yes | Yes | Yes | Yes |