Live design in the same Studio document is not currently possible. That being said, there are several existing ways to collaborate in real time with your team:

• Freehand: Sync your Studio prototypes to a new freehand project and get immediate input from your team.
• Shared Libraries: Take advantage of Studio's Shared Libraries feature, allowing you to keep your design library consistent across Studio documents.
• Share links: Generate share links (within the permissions of your InVision plan) and distribute to stakeholders for feedback.