Solar pathway light and step light brightness adjustment

I'd like to be able to set the brightness in the app when I have my solar pathway lights and step lights on a light schedule. I understand this restriction is due to battery conservation, however even being able to turn them to 25, 50, 75 percent max would be better. I bought these for my parents so they can see the pathway and steps when coming home in the dark, however the lack of light output makes it so the lights aren't even worth the cost at this point.