Dear Lokesh,
You can absolutely use the same SSH key with VS Code, as long as the key is present on your PC and matches the one uploaded to the HPC portal.
Best regards,
Ayesha
PS. please refer to documentation:
- MobaXterm: https://doc.nhr.fau.de/access/ssh-mobaxterm
- VS Code: https://doc.nhr.fau.de/access/ssh-vscode