Multiple Timers Therapy session

Hy I am a therapist and would like to use the Yeelight Led bulb w3 color bulb for countdown timer for my sessions. I would set timer for 70 minutes or 90 minutes and change the color half the time and again neart the session end and at the end to flash the timer. I cant see where I could do that in the yeelight app. How can I set up to have one button start (ideally have a one button widget) three timers at once one after the other: 1st at 30 minutes change to yellow 2nd 60 minutes change to orange 3rd 70 minutes change to red and blink a few times. Thank you

You can work through Mijia APP instead of Yeelight APP

Yeah. Found it. Delay option in scenes. Thanks