Hi

blue signals are CONTROL type ones, while green are dedicated to AUDIO and MODULATION. Crossin module uses modulation as its control source, being interpolated. As the help for the module says:

Use this
module for smoothly fading from one sound to another. Since the select input is
mod type, you can do very fast changes without any "zipper" effect.

Check the BRIDGE modules:

These modules in most cases convert an audio signal to a control signal
or vice versa. When converting from audio to control, the audio signal is
sampled to generate the control signal. This may result in values which do not
transit smoothly. The filter variants of bridges smooth the values.

These modules to not have a major impact on either the control process or
signal processing although both are used by these modules.

a_fltr_c Audio to control,
filtered afc
 

a_to_c Audio to
control a_c

c_bridge  Machine to
Machine cbr

c_fltr_a Control to audio,
filtered cfa
 

c_to_a Control to
audio c_a
 

c_tweak_a Control to audio,
fine c_a 

You may use a C_TO_A to attach a percent knob to the Crossin xfade input…or a pedal (EXT CONTROL) and bring them up, on the UIof the unit.

Please use the VSIG AND PRESET DEVELOPMENT dedicated folder for any question related to the editor and algorithm programming.

best

I