Can this seat be installed in the middle rearfacing with an armrest?

Hi Catherine, Thank you for your enquiry, we would reccommend contacting your nearest store and talking to one of our Trained Car Seat Technicians, they will give you the right advice when installing a capsule and can even do it for you free if you purchased your seat from Baby On The Move, otherwise there can be a small fee to get the installation done. I hope this helps. For further information on this or any of our other products available, if you follow the link https://www.babyonthemove.co.nz/store-locations/ this will take you to our online store finder. Here you can find contact details for your nearest Baby On The Move Store where one of our team experts will be happy to assist you in your product search and help answer any further questions you may have. We hope this has helped with your query.