You have to change it in the eqclient.ini. It wont save it correctly in game from what I remember. Just change it to 1920 x 1080 under [VIDEO SETTINGS] or whatever in that file after you exit the game. Then get this program and use alt + enter until it works.
https://sourceforge.net/projects/bor...gaming.mirror/ It will fullscreen and allow you to alt tab or move your mouse across to a double monitor without it minimizing. And yea alt + o to change hotkeys under the keys tab.