Less touchpad gestures after update to Win10 (XPS15 L521x)

Hello,

after the update to Windows 10, I have less touchpad gestures available. Before, I could use 4 finger swipe to the sides to change the tabs in the browser. When I go now to the DELL touchpad software, there aren't any options anymore for 4 finger gestures. And instead going back/forward with a 3 finger swipe to side, it changes the apps now (which is unnnecessary for me because a swipe up opens task view). Is it possible to change the actions of the touchpad and get back the 4 finger gestures?

For me it's incomprehenisble why DELL reduces the functions of the touchpad with the upgrade to a newer OS...

Regards,

Johannes