When viewing article page, the address bar used to have a reading mode icon, clicking on it will turn the page to reading node instantly. Now I've upgraded it to latest version. I found that if I want to view a page in trading mode I need to these:

1 click menu icon 2 click add to reading list icon 3 click on switch icon which appears floating on the page 4 it takes me to the reading list, the I need to click on the article I want to read. So. Question: How do I switch a page to reading mode in one click?