It’s a different interface, but it still seems pretty quick to me == I think I actually like the new interface better. When you click on the little remote control icon in the bottom right corner (at least in IOS and on the web interface), click on Add Custom Run. Once there, click on either Select All or just the zones you want to water. After that you will get a page where you can set the run times for each zone (it defaults to 3 minutes each), and you can also reorder the zones for which will water first. And then just “RUN NOW”.
Hope this helps.