Only allow one component of specific type on editor

Hi @krunal039,

My best suggestion would be to listen for the component:add event. In the event listener function you could check to see if the added component is the type that you are looking for, and if more than one of those components now exist in the canvas then remove the one that was just added and inform the user.

editor.on('component:add', model => {
    // ... your logic goes here
    if(remove){
        model.destroy();
    }
  });

@krunal039 Ryan's suggestion is the correct way to accomplish your request