You can filter conversations to get notified about any conversations that happen in chat rooms that match your filter criteria. Filters can search when a key word is used, a certain user makes a comment, or your username is mentioned.
In the client, select Create Filter., then select
Give the filter a label and then define the filter criteria. You can filter chat rooms using up to three keywords or by username. You must define at least one keyword or the username of the sender, but you can specify the sender and up to three keywords.
Results are listed on the Filter tab, with a number to indicate how many results were found that you have not read. Results are updated automatically each time a new match for your filter is made. When you have matches on your filter, you can click on the filter match to open the chat history in the rooms where the matches were found.