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).
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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.