Wiring Bf2 in a multi fx

[pliolis]

I want to wire the BF2 into a multi fx overdrive ,eq, phase ,flanger ,then analog delay, where do I connect the in and out from the other pedals 1-9 on the switch or A-E on the header pins or the input -output jacks ,,normal two pedal in a box don''t apply here because of the header pins and wired jack ,must be an easy way