You can copy it to another character (Alongside other things). Go into /Documents/My Games/FFXIV A Realm Reborn. There is a folder for each of your characters named FFXIV_CHRxxxxxxxxxxxxxxxxxx. Open the right one and you will see some files called "Hotbar","Macro",(...). Just copy what you want and replace the files in your other characters folder with that. There is no real indicator wich folder is wich character, but usually your main characters folder has the highest amount of megabytes. Maybe create a copy of the folders first before you play around with that.