A plugin for Dalamud with FFXIV which lets you move and resize vanilla UI units with far greater control than the game gives.
To use this plugin, add http://repo.modloader64.com/ffxiv/plugins.json to your list of plugin repositories.
/prhud to open the configurator.
With the configurator opened, and the Draw Addon Inspector option enabled, you can press Right Mouse while mousing over a UI element to add it to your list.