Side chaining

[MuTools]

If the bass is in Rack 1, how do I connect its output to the aux input of Rack 2?

Via the Project Modular Area.

[heks]

That means that the plugin does not have any extra in/out jacks.
Note that if a VST plugin only has one stereo input jack, you cannot directly use the "Aux Input" method to setup eg side-chaining as their only is 1 input jack. If a VST plugin only has 1 stereo input jack and uses the right input pin as a side-chain input, then there are 2 options:

1) If that VST plugin always uses its stereo input as 2 separate mono inputs, then you can overwrite the VST pin configuration in the VstPlugins.Xml file, as explained here: http://www.mutools.com/info/docs/common ... ences.html

2) If that VST plugin's stereo input is to be used as 2 separate mono inputs in that specific project, then move that VST into a MUX and use 2 Audio Inputs and a Stereo Combiner in that MUX to wrap the inputs. Then right-click that wrapper MUX in the rack and you'll have the "Setup Aux Ins/Outs" option.

Does this help?

Thanks, will have a look at it again later in the week, just a little rushed and sort tempered to concentrate properly right now.