In the Motion Dock, enter Edit layout and double-click Synapse’s slot. You can also right-click its slot and choose Module settings. Leave layout mode after closing settings to use Synapse again.

Settings set the starting values of a new Synapse's effect. They don't change a Synapse you already made. Change that one on its effect instead.

SettingDefaultRangeBehavior
Line Width20 to 100The Width a new Synapse starts with, in pixels.
Max Distance30010 to 5000The Max Distance a new Synapse starts with. Web links layers closer than this, in pixels.
Inset00 to 500The Inset a new Synapse starts with. Lines stop this many pixels short of each layer.

Max Distance also sets the reach Web’s hover preview uses when no Synapse is selected. With a Synapse selected, the preview uses that Synapse’s own Max Distance and Fade Distance.

The Synapse layer and effect lists every control a Synapse has after it’s made.