By default, each time configuration is changed, recommended platforms are automatically recalculated. To disable automatic recalculation of the results and only perform calculation by user's command, do the following:

1. Click Settings.
   
2. Calculator settings are displayed.
   
3. Set the Disable automatic calculation checkbox (1).
4. Click Save (2).

The Recalculate button appears under the Parameters table. Click this button to calculate recommended platforms after setting all required parameters (see Setting parameters of video surveillance system).