I just installed a Serena Shade into my Caseta system. I paired it in my app as well as with a Pico remote. I know how to set the pre-set level on the Pico; how do I set the preset for the shade in the app? When I click on the shade in the app, I get symbols for full up and full down, triangles for incremental up and down, and then there's a star in the middle which I assume is for a preset. By default, that takes it to 50%. Can I adjust that preset? I've tried holding it - no dice. Ideas? Thanks.