I like the suggestion above about focusing on the "why" as much as possible, and providing another forum for the "how to."
Features in Church apps and websites can be grouped into two categories – "tools" and "content." When talking about "tools" (directory in Member Tools, prayer roll online, taking notes in Gospel Library), it's easy to get caught in the weeds of how-to. These types of things are easier to teach one-on-one or in small groups. There will be a lot of questions and distractions as people are trying to keep up. People will have different levels of comfort with technology. People who can't keep up may feel left out.
There's no need to completely avoid mentioning tools, but for a fifth-Sunday lesson, focusing more on content might lead to a more gospel-centered discussion.
For example, maybe you could ask specific ward members in advance to explore a certain set of content, then come prepared to share what they found and how they feel it could be used to strengthen their relationship with the Savior, or to strengthen their family. This might include:
– "Topics and Questions" in Gospel Library
– "Life Help" in Gospel Library
– "Handbooks and Callings" in Gospel Library
– "Youth and Contemporary" in Sacred Music
P.S. Sorry for the late comment, given that October's fifth Sunday has already passed.
