Step 8 - Add Your Skyline Now that you have choosen your colour it is time to open up the custom tool option box and select the skyline that you want to use. Once it is selected all you need to do is hold the shift key down and drag across the whole page. This will then leave you with your skyline. Also you will find that you will need to disable the vector mask that appears on the skyline, to get rid of it click once in the right hand side image on the custom shape layer.