Half Degree on classic for Stelpro device but not new ST app?

Hi. I’m kinda new to all this stuff but I understand it. I have Stelpro thermostats. KI SÉRIES AND MAESTRO. both for line voltage baseboards. On the Classic app I can adjust for the half degree and create an automatic as well. But in the new app it only works to the whole degree for both. Any thoughts or fixes for this. Thank you