Hi I have a xolo q 2100. First let me say was def worth the buy great phone with great features with a favorable price .

Now my question is regarding killing tasks and app that run in the background and drain battery . I am able to do it from the floating widget but that widget disappears if let's I clean the ram using clean masters. So is there another way to kill tasks apart from the floating widget.

Second how to switch between apps while multy tasking . with my other Android device it was quiet simple . the button left of the home button did the trick .

Any help is appreciated
Thanks