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Click on the Order icon at the far left of the screen. This will open up a list of all of the current tags in the document and the order in which the tags appear. If the tags are not visible, click on the plus sign to the left of the page name to expand the list of tags on each page.
If you do not see this icon on the left bar, right click on the bar and select Order from the drop down menu.
Right click on any tag on the list and select Show reading order panel. This will open up a pop-up window that allows you to add tags to your document.
Click and drag overtop of the item you wish to tag. A rectangle should appear around it.
Once selected, blue boxes should appear around the selected text/image/form field. The buttons in the pop up window will now become clickable.
Select the tag you wish to add to that highlighted item from the reading order panel. Notice that the tag will now appear in the Order list.
Once manual tagging is complete, run the Accessibility Checker again to ensure that the tags were placed properly.
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