Tabable

"Tabbable" refers to objects and monsters that you can target by using the "Select Next NPC" control key, which is by default bound to the Tab key. Often, people who are running through a zone will keep hitting the tab key repeatedly to find monsters, harvestable nodes or quest objects.

Most objects and monsters in Everquest II, including NPCs, harvestables and quest gatherables are tabbable. However, some objects, such as some special quest objects, player characters and corpses, are only clickable, and you will need to move your cursor over them and then click either one of your mouse keys.