1 and 2: There is a blue Edit Mode button next to the shopping cart. Click that and you should be able to make changes to stats and progress bar width. This article has more details about using and editing the Experience window:
https://www.eq2interface.com/portal....d=36&pageid=59
3: Next to the Start button on the Harvesting Helper is an icon that looks like a shiny. Click that to toggle collecting shinies.