The plug-in host example from JUCe v4

I’m looking for the plug-in host example from v4 specifically the GUI if Anyone remembers you were able to drag and drop and make connections to other audio plugins then a final output

It was all white with I believe red and blue wires connecting them

Sounds like the AudioPluginHost, that is still in the repository. You find it in
JUCE/extras/AudioPluginHost

Thank you so much can’t believe I couldn’t find it