KristalMultiDelay is a powerful Delay/Filter Plug-In with 10 individual channels.
Tip: You find some additional presets for this Plug-In in "<KRISTAL Audio Engine>\Presets\KristalMultiDelay".
The first parameter of each channel (the little right arrow) is the input port which will feed the channel with audio data. You can choose between the Plug-In inputs or outputs, four internal channels or no input (displayed as '***').
The last parameter of each channel is its output port. You can choose between the Plug-In outputs, four internal channels or no output (displayed as '***').
This controls the mixing of the input signals and the delay channel signals.
Note about Routing: You can route a channel output to a channel input, but this only works from left to right.