Hi, you can create an HTML/ CSS/ XML/ js page by following the below steps:
1. Go to App Settings. 2. Click on new page option under the user interface section. 3. Once you create your HTML page then, you can add a web widget on the home page and reference your page directly there.
I have no idea what you mean by "new home page". Please provide details with a screenshot and/or the code you are using. I am sure the solution is trivial to implement but I have no idea what you have attempted.