You say you can manually open and close them with the new app. So you have the ST app linked to your Leviosa zone?
If so you should be able to create a custom automation to open or close at a specific time. I just looked in the new app on mine and when I select devices I can then select any of my shades.
I don’t use the new app for automations per se myself, I have all my automation setup using webcore and virtual switches. When I first got my shades the new app caused me a great deal of problems. So I avoided using it as much as I could. I setup the virtual switches and have automations in the new app that open and close the shades if the virtual switch opens or closes. I then control the virtual switch with webcore and the classic app.