If you are using MATLAB with a lot of toolboxes and blocksets, there is a lot of documentation available to you in the Help browser. That’s almost always a good thing, but if you’re primarily interested in just a few of your installed products the others might just be cluttering up the Help browser, making it harder for you to quickly find what you need. With the product filter, you can configure the Help browser to only show documentation from the products that you really need help for.
To set the product filter, open the Preferences dialog (File -> Preferences…) and select “Help” in the left-hand side. You can get to the help preferences quickly from the command window by running
>> preferences Help
Check the box labeled “Enable product filter”, then click on the “Select products…” button to bring up the product filter dialog.
The product filter applies to the Contents, Index, Search, and Demos tabs in the Help browser, but does not apply to MATLAB commands such as help or doc. So, for example, if you have the product filter configured to hide the MATLAB documentation, you can still bring up the reference page for the MATLAB plot function by running
>> doc plot
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