Bollinger Bands on another indicator?

[saroj]

is this possible w/o writing custom code?

[NinjaTrader_RJ]

is this possible w/o writing custom code?

At this time it is possible for an indicator to be placed in either the price panel or another indicator panel however, if all objects in the panel do not share the same relative scale, the visual affect will not be as you expect.
For example, if you placed a stochastics indicator in the price panel, the y-axis scaling of this panel will be from a range of zero to the highest high of you price series. This will likely cause the price bars to be severely compressed in the top of the chart.
The ability to "overlay" will be added in NinjaTrader 7.
As an alternative, there are some user submitted custom indicators such as "stochastics over price" located in our NinjaScript File Sharing section of our forum. These are free to use.