Can I run Vision 7.9 and 8.1 clients on the same PC

I have a customer with several 7.9 gateways. They are now installing an 8.1 gateway for a new production line. Can they run both Vision 7.9 windows from an existing gateway and 8.1 Vision windows from the new gateway on the same client PC in separate Vision sessions?

Yes, shouldn't be an issue.