I tried adding a Widget (simple text) on both main and secondary areas. Later I could remove ony that one on the main area. I cannot get rid of that one I added in the secondary area. The Blue Edit botton does not work. May be there is a problem with my browser (Internet Explorer 11)?
Second, the widget (simple text) appears on the bottom of the page indepently if I use the main or secondary area. I expected the widget on the secondary area to be on the side (sidebar).