Where Catalyst stores applist for switchable graphics?

I cannot add an app to the list to manually set it to high performance (Radeon instead of Intel HD). When I browse for an exe, nothing happens, the list is still empty. So, maybe I can edit some .cfg or .ini?

UPDATE

This is not my machine, but an example of what I'm looking to do: the list with iexplore.exe is what I meant. When I click 'Browse' and choose any exe (Portal2.exe, for instance) nothing happens. The list is empty, so I cannot set mode for Portal2.exe.

I've been looking around in the appdata and I found this :

C:\Users\user_name\AppData\Local\ATI\ACE\APL\GpuAffinities.xml

This is how the xml is built up :

<?xml version="1.0" encoding="utf-8"?>
<customisations Content="User" Format="1">
  <applications>
    <application Title="Google Chrome" File="chrome.exe">
      <use Area="PXDynamic">HighPerfGPUAffinity</use>
    </application>
    <application Title="Microsoft® Visual Studio® 2013" File="wdexpress.exe">
      <use Area="PXDynamic">HighPerfGPUAffinity</use>
    </application>
    <application File="iw4m.exe">
      <use Area="PXDynamic">HighPerfGPUAffinity</use>
    </application>
    <application Title="Skype" File="skype.exe">
      <use Area="PXDynamic">HighPerfGPUAffinity</use>
    </application>
  </applications>
</customisations>

I didn't test it but I guess you can simply add your programs there!

Greetings