In Protection Settings, under Wireless Connection there is no option to add an AP to the list. 

Hi @shawnsmith3 

Welcome to Trend Micro Community!

The access point in the Security Settings for wireless connections only displays Wi-Fi connections that have been marked as trusted, despite the warning about potential risks. If mistakenly permitted, you can reverse it by removing it from the list.

You may check this link for more details.
https://helpcenter.trendmicro.com/en-us/article/tmka-18584