Before, there was a list of the categories I had created on the right-hand side of the screen. Next to each category was a checkbox. After writing a blog it was a simple matter of check the boxes next to the categories that I though applied. While adding a new category took a step longer than it should, it was not enough of a problem that it demanded an overhaul of the system, but that's what happened.
Instead of a check list, I now have to go to the left side of the screen, scroll to the appropriate menu and then use a drop menu to assign categories ... one at a time. The process is cumbersome and time-consuming, and so I haven't used it for a few months. Unfortunately, that means that I can't find entries that I am looking for easily. Plus my categories are now missing my more recent entries.
If I had the time or the patience, I would go back and put categories on my previous blogs. Nah, I'd rather play more Skyrim.