Up and Down to move, Enter to open. Searches every page, tip, table and command.
In game, Trade only shows the players on your layer. Crossroads is the Trade chat for your whole realm. Here's how to keep it in view while you play.
Every Crossroads room has a channel in the Warchest Discord (region, ruleset and faction, like us-pvp-horde) with its Trade chat, groups and crafters as they happen. Discord can show a channel on top of the game:
Discord's menus move around from time to time; if a step looks different, look for Overlay in Discord's settings.
Prefer the website? Keep Crossroads open on a second screen or your phone. Watching for something? Crossroads can alert you, with a sound, when an item or your name comes up in Trade.
/wc trade WTS in game, shift-click your items into the box, copy it with Ctrl+C and paste it on Crossroads or after /trade in Discord. The items show as real item links with their tooltips./group, /lfg and /craft in Discord, or the buttons on Crossroads. When someone answers, you get the exact line to paste in game (/w Name ... or /invite Name).The Warchest Companion app adds what's said in your in-game Trade to Crossroads, so players on other layers see it too. It's optional, and the game saves chat in bursts, so those lines can arrive a few minutes after they were said; Crossroads shows when each was said.