@Cindy237 Since you are confident that you are a great 'Work' listing, I might do what Airbnb and Matthew suggest, with the addition of adding this information to your listing description, as well as 'Other Notes'. Then, when people book, you can be honest and briefly explain that you offer an ideal work-friendly listing but there was no way to note the type of check-in service you offer other than to describe it in the listing description and 'other notes', yet you can indeed accommodate the work traveler with a flexible check-in. You can let them know that if your set-up does not work for them, they are free to cancel and no harm done. An extra step for you, but it would allow you to stay in the 'Work' category.
I do something similar - I have 'kitchen' checked off, but I stress in my listing it is a kitchenette and I reiterate this when people book. I also emphasize that the Washer and Dryer are on my side of the property in my house, and they are free to use it (I have 'Washer' and 'Dryer' checked as well). Nobody has cancelled on me yet, and I have a written record that the guest was aware of, and agreed to, my set up. Just something to consider!