These clips allow you to mount two Filament sensors of type https://www.amazon.de/gp/product/B0748D1549 to your bibo2. They offer far less resistance than your regular BIBO2 sensors. Though the two clips I received from amazon both needed some bending of the internal switches to work properly I still got them working nicely.

The clips work similar to https://www.thingiverse.com/thing:2775671, but are more lean and make use of the original holder.

For easier mounting I ignore the direction arrows on the extruder 2 sensor as it doesn't really matter.

I used these connectors to go to the original connector: https://www.amazon.de/gp/product/B0782XKJWT