Seamless mode is used when the Secondary computers are local and the monitors can be seen by the user of the Primary PC (on the same desk for example).
Multiplicity Seamless connections enable you to freely move between multiple monitors connected to multiple PCs, copy/paste, or drag/drop information ‘seamlessly’ between them. For example, a file can be copied from a Windows 10 computer and moved to the monitor of a Windows 11 computer for pasting.
This is in contrast to the Multiplicity KVM feature where one can create connections to local or remote computers on the same network where a monitor, keyboard, and mouse may, or may not, be connected to the Secondary.
Key items about Seamless connections:
Seamless connections can only be initiated from a Primary.
At least one monitor needs to be attached to the Secondary (on the same desk as the Primary) when connecting via a Seamless connection.
Up to 8 Seamless connections can be on the Multiplicity grid at one time.