 So you hate going into materials every time you just want to adjust a few values, not a problem. Anytime you want an easy way to adjust a value of a material, right click and convert it to a parameter. For example, there are two values in the infinite non repeating textures that control the distance which the textures get blurry and how blurry they become at that distance. So if we turn those into parameters, then from that point on, anytime you want to change these values instead of opening up the material, if you right click and create an instance of that material and drag that instance into the landscape instead, when you open up that instance, you will see the option to activate and adjust those parameters. Hope that helps and as always, if you have a fantastic day, now see you around.