Tool case and WHIPS

Hi, my very much has given me today the manual of his XC90 demonstration car. And then I happen to hit the page about WHIPS and see that I have been driving my tool/installation case wrongly with me for years: behind the front seat – and there it blocks WHIPS! – Do you have suggestions for accommodation/securing in the trunk? – Does the XC90 actually have built-in belts (doesn’t believe)? – What is to hold from a net above the ground under which you push the case (does anyone have such a thing? from where?) – Or should I stay cross-crossed with my good old 2 rubber drops? I would be happy about your ideas and experiences! Greeting Jürgen actually happy that he is forced to put the thing in the trunk as he has always cut macks into the rear door panel with it.