I was surprised that they didn't add this when the PS4 system came out. They made a PS3->PS4 upgrade tool that allows transferring gear sets, hotbars, and macros specifically from a PS3 to a PS4 by uploading those settings to SE from the one and then downloading them to the other, but it's platform specific and can only go in that direction from a PS3 and to a PS4. They came so close to creating the feature people have been asking for since the game was released, if only they'd made it omni-directional and usable from any machine to any other.

(It would need a few other tweaks as well for regular use, like only overwriting settings that are included in the transfer. For instance, it doesn't include HUD layout, but still overwrites whatever HUD layout the target machine has, setting everything back to its default positions. That would need to be fixed.)