Just press the key on your keyboard when “Select anchor area or press key” is shown on bottom right.
Then, a new action with a text area appears.
After selecting an anchor area you can press the keyboard on the input bar and enter the text into the field.
After selecting an anchor area you can click on the scrolling bar in the browser window of your editor and then play the action.
After selecting an anchor area you can swipe by holding the mouse button down, where the swipe shall start and release the mouse button where the swipe ends. Click on “Play this” to perform the action on the system under test.
There’s a special site just about scrolling.