Hello MaryLou BRCS,
Welcome to the QuickBooks Community! I was able to test this out on my end, and you would have to physically delete each fixed asset. Unfortunately, there isn't a bulk action yet. However, feel free to add feedback to our Developers about adding this feature for the Fixed Assets Manager. I will also submit feedback as well.
If you have any other questions, feel free to comment below! We will do our best to help. Take care.
