Yeah, your description is inconsistent. Sliding down slopes IS sliding due to gravity; if you want objects to slide due to gravity they are going to slide down slopes.
Re-reading, it sounds a little like (pretty vague though) you want full sliding collision detection for the camera but not for the character. In that case just set the camera and character to different EntityTypes and use two separate Collisions statements for camera-to-walls and character-to-walls.
Re-reading, it sounds a little like (pretty vague though) you want full sliding collision detection for the camera but not for the character. In that case just set the camera and character to different EntityTypes and use two separate Collisions statements for camera-to-walls and character-to-walls.