S6 Duos: Toggle for Data Service Network

I have a **Samsung Galaxy S6 Duos**, with two SIM cards set up. Each of them has a data plan. In order to switch the active data plans from one SIM to another, I go to *SIM Card Manager* under *Settings* and change the preferred SIM for *Mobile Data Network*. Is there a more convenient way to do this? I can switch between active SIMs using the pull-down menu, but this does not switch the active data connection. Is there a setting or utility that lets me do this from the pull-down menu as well?