I post a lot of their charts, so let me add to that:
You can have three indicators overlaid ON the chart,
and
Three indicators above or below the chart
and up to
Three years of data on the chart.
If you post more than 3 indicators (moving averages, PSAR, etc) ON the chart or 3 indicators above/below the chart, you won't see any more than 3 on and 3 above/below... and you won't see more than 3 years of data... IF you are a non-paying StockCharts person. The chart format reverts to a default size with a discliamer at the bottom.
Here's an example of a chart that has all kinds of code in it to produce loads of information, but non-members only see the default setting: It's capped 3 on, 3 off and 3 years. The code is for a 15 year chart with multiple indicators. Paying members SHOULD be able to see a 15 year chart.