Yes – that drove me bananas too. I did enjoy the facility, on mine you can set temp basals but they are sort of permanent – ie you can choose 4 different ones but the parameters have to be put in. ‘It takes about 3 minutes to change the parameters, but it’s much quicker to be able to just set the length you want each time. And you can decide how long you want the ‘reminder’ interval to be.
Have you tried asking over on the Diabetes UK website? Or sending a mail to Minimed?