NkRebuff - Import / export bars
From Riftui Wiki
Once you have set up the bars to look like you want and moved them around the screen you certainly wouldn't want to do the same for each of you twinks. By using the 'import' and 'export' button you can share the bar layout between chars.
Clicking on 'export bars' will store the layout globally for future 'import'. Simply log into your alt and click on the 'import' button and this char will get the same layout. Please note that you will have to again export / import if you make changes to the layout and want to re-share these changes.
This functionality is also quite convenient if you want to play around with the layout options. Simply export before you do any change and you can later always re-import you old settings if you're not happy with the new layout.