copy&paste is disabled by default, but you can enable it for the VM:
- Log in to a vCenter Server system using the vSphere Client and power off the virtual machine.
- Select the virtual machine and click the Summary tab.
- Click Edit Settings.
- Navigate to Options > Advanced > General and click Configuration Parameters.
- Click Add Row.
- Type these values in the Name and Value columns:
Name Value
isolation.tools.copy.disable FALSE
isolation.tools.paste.disable FALSE