The MACD is a classic trend following device, and a lagging indicator. It won't anticipate movement in a chart, but the idea is that the MACD will help you capture the trends. David shows examples in charts.
ChartPacks are pre-created ChartLists that you can install into your account with just a couple of clicks. ChartPacks can contain a single list of general purpose charts or they can contain many ChartLists with a wide variety of charts.
Julius, creator of Relative Rotation Graphs, explains how to adjust tails and what the tail length and thickness mean.
Greg walks you through setting up area charts as an indicator rather than a line charts so you can quickly see specific things you are looking for.