Do I need to have all charts open to display an alert

Lets say i want to have an alert when the RSI> 80, on all my charts.

Do i need to have every chart open, or can i just have the charts in Market watch.

Having every chart open slows down my pc, or is there an indicator that just checks symbols in market watch every hour for example
Thankyou...

I would say YES

And get a better computer

Hey brownturtle,
You haven't really explained your question to be clear enough for some to understand it properly and what is needed... those reading will be using a lot of assumptions on their end and you may likely not get the answer you seek. The description of "alert when the RSI> 80, on all my charts" can really mean anything....

Are charts linked in some way? are you looking at rsi on several different time frames and you want them to be >80 before an alert is triggered? or is it between several different instruments? Just a few assumptions one can jump to....

The key thing for you will be how the indicator is designed... The thing with putting an indicator on a particular chart is so the chart symbol and period could be used as a default in most cases.. but you see, an indicator can be written to look at other symbols or timeframes without begin put on the chart. eg. currency strength type indicators will call other pairs (instruments), even though it may be placed on a single chart.

Things that should help:
-reduce the amount of bars on display in your platform in options. Make sure to restart the platform after making the change.
-provide another more clear example of what you are trying to achieve. Use pictures and even upload a copy of the indicator.

hope that helps