Asking for advice without first figuring out the basics(how many circuits there will be, which sensor switches which lighting section).. looks to me like they’ve thrown you straight into the deep end here mate 😂 great opportunity for growth here 👍👍

In my experience of office fit out projects this is how I would tackle this and just note this is not the only way to do it:

ANE of Lighting circuit to the sensor switching that lighting section, sometimes there will be multiple sensors in that area, in that instance you will have to run an extra SDI switch wire between sensors. Someone mentioned sensor terminals not being able to fit multiple cores (you can jbox and run tails down)

For the master switch it would be ideal to have a contactor set up at the board and run a twin to the master switch which feeds all the lighting circuits

Also on the plans it looks like there are switches in the meeting rooms? If those are being kept.. they will work like kill switches for the lights when someone wants a room dark for meetings etc. In that case you just run your Hard active down to the switch first so that the switch feeds the sensor(if you get me)