Use the incoming audio or choose an audio input per EQ band from a different source inside the audio side-chain modulators. The bottom left audio SC modulator is for side-chaining the bass using band 1 in HP mode. It is "turned off" to avoid confusion with the dynamic EQ modulator of band 1. Increase the depth of modulation of the frequency on band 1 to bring it in. Also decrease the depth of gain modulation from the dynamic EQ modulator of band 1 to have them trade places.
You can review this Bitwig Preset after you've downloaded it.