I was have same problem and found solution. You can use add on for FireFox named TWO it can be downloaded from like general add on, but if u don't use firefox and use chrome for example u need to go on github of developers this extention -paginas-web and go up throw instaling guidline "Chrome, Edge and Brave (With CRX and auto update)". And then u can use it in chrome and can set up any hotkey for translate. Also don't remember turn off standard pop up google translate for each page.