I rarely ask questions these days but I have one which research does not give me the answer.
[B]This question is for people who have computer programming experience.[/B]
[B][U]Details[/U][/B]
I am having considerable success writing indicators in the Chart Studio section of Dealbook.
My success comes as a mathematician - that is a great advantage. 
Now when entering an indicator in Dealbook, there is a provision to put your indicator on the main chart or a sub-chart on its own.
This is done with a box with a tick in it.
Removal of the tick gets your indicator to appear on the main chart.
Keep the tick and your indicator appears in a sub-chart.
[B]So far so good! [/B]
Now when you choose an indicator such as the Bollinger bands, the tick in the box [U]automatically disappears.[/U]
The Bollinger bands then, appear as they should - [U]on the main chart[/U].
I like this automatic tick disappearing function!!
[B]So far so good![/B]
[B][U]The question!![/U][/B]
I write my own indicator and choose it to enter, but the tick in the box stays put and does not disappear.
I would like to make it disappear - just like the Bollinger bands tick.
So I study the programming code of all the default indicators - and there is nothing secret in them that directs them to keep the tick in the box, or make it disappear.
[U]So what could it be??..[/U] 
that some default indicators such as the Bollinger bands make the tick in the box disappear, while other default indicators keep the tick??
[B]Now who can answer my question? [/B]
Regards, Tymen Wortel, Perth, Western Australia.