Without physical TOUCH you can simulate touch effect by sending 14 bytes of Data from uC. Creating HEX bytes array is made easy in this video. HMI file & Code download : https://www.alselectro.in/product-page/4-3-touch-dmg-80480-c043-01-wtr
Right-click 'Download' and select 'Save Link As' if the file opens in a new tab.