User Lookup collects Whois and Last Seen lookups in one place. Open it from Tools > User Lookup, or right-click a nickname in the nick list or chat area.
Whois
Whois shows current information for an online user in a result card, including shared channels, online time, idle time, registration, away status, bio, and client details when available.
Last Seen
Last Seen runs the Whowas lookup for recently disconnected users and shows when they left, which channels they were in, and their quit message when one was recorded.
Menu Konteks
Nickname context menus include Whois and Last Seen (Whowas). Whois cards include buttons for Whowas and Query (PM). Last Seen cards include a Whois button when the user is currently online.
Papan Ketik
There is no dedicated keyboard shortcut for User Lookup. Use the Tools menu, a nickname context menu, /whois, or /whowas.