tildes + helm integration

Hi, I'm new to the list and Evil. In the past 3 days I could customize lots of things. I would have 2 questions: 1) Is there a way to show blue tildes (~) after the last line of a file? I miss that feature. 2) I installed the Helm plugin but it stole some key bindings that I'm used to. For instance, "gf" in Evil opens the file under the cursor, while "gf" in Helm means "find a file". So I uncommented Helm in my config file, but I'd like to use it. Do you have a solution how to prevent it from stealing key bindings? In my config file I also changed the order of imports (first Helm then Evil, then vice versa) but it didn't help. Thanks, Laszlo