2 pointsThe module is avalaible here : https://www.clicshopping.org/forum/files/file/85-modules-header-select-template/
1 pointAs I said, the extension tools install is not perfect on this ergonomy and after an installation you can little lost. Something must be done to be little more user friendly. It's a critics, but it's usefull if you want to make something quickly and you any knwoledge. Recently, some tutorials has be done @Maxime, If you are new, these videos will help you.