At first, you will need to identify what installer system is SysDLLs_QT using. Most of the applications nowadays use MSI Installer and InstallShield for deployment which in this case the silent installation should be handled by the /quiet or /s handle. Also, feature customizing is done using the built-in handlers, where is the case.
To test the available options for installing, open a Command Prompt and navigate to where the package is and run it with /? handler. Then you will have the possibility to customize it the way you want.