Ransroth has done a good job of clarifying this point for me in another thread.
Originally Posted by Cerebrum_EU
They key is you don't want to use different types of bars when changing the traits. It's all saved on the sword quickslots.
So let's say you have saved trait configurations A (Stabby) and B (Smashy).
(1) Bring up your sword quickslots (if not already up) and put yourself in your saved "Stabby" trait configuration.
(2) Put all your skills where you want them to be for this trait set. (Only necessary the first time.)
(3) Now, still on the sword quickslots, put yourself into the "Smashy" trait configuration.
(4) Put all your skills where you want them to be for this trait set. (Again: still on the sword slots.)
(5) Now, switch back to your Stabby traits. Your sword slots will re-arrange themselves to what you set up for Stabby. Switch to your Smashy trait, and your sword slots re-arrange themselves to what you saved for Smashy. You stay on swords the whole time.
You can use the other slots (horse, shield) for anything you like -- but they will not change or re-arrange themselves when you change traits sets, the way the sword slots do. Horse is good for mounted combat skills (and, in keeping with the "riding" theme, maybe travel skills? Different mounts? Your call.) The shield slots could hold other skills you want to have handy (emotes? Gear swapping? Food and buffs? Lots of possibilities).
What's nice about this system is that your other quickslot sets are freed up -- they're not tied to a specific trait configuration. All trait configuration changes happen on the Sword slot set, so all other slot sets are entirely free for your preferred use.
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