"to then delete it from the scanner you have to write to the scanner and check the box: ERASE FAVORITES LISTS ON SCANNER."
I don't doubt that this sequence works based on the numerous testimonials from forum members, and I don't mean to offend anyone that believes this sequence in Sentinel is straight forward and logical. But, in my own opinion, it's one of the most counter intuitive sequences I have ever seen to accomplish the simple deletion of a favorites list. The sequence within the radio is straight forward and logical. These are consumer oriented products, all be they sophisticated in their capabilities. It is not a Raspberry Pi, where you naturally anticipate programming anomalies, and expect to encounter complicated programming protocols.
I was curious, and haven't been able to find a manual published by Uniden that describes how to use the Sentinel program, or how to delete favorites lists in Sentinel. The only reference to deleting favorites lists shows up in a very short sentence in the scanner's manual, and it refers only to managing favorites lists from the radio itself, with a vague reference that managing favorites lists can be accomplished within Sentinel, with no further explanation whatsoever, and absolutely nothing pertaining directly to erasing favorites lists.