Go to Appearances > Widgets > Add widgets to available widget areas.

1. Sidebar:

2.Toolbar:

3. Header Demo 2:

4. Menu Sidebar:

Front end Header demo 2:

5. Footer: 

Follow these steps to add widgets to Footer:

Go to Appearance > Widgets > add Layouts builder

Add Widgets to Footer layout 1, 2, 3, 4 as the same with Footer Demo 1.

Add Widgets to Footer Bottom:

Front end Footer bottom demo 2: