You can manage the contents of your pick-lists in Content Manager. In Content Manager, you can then highlight and copy, and then paste the lists into a text file. By copying the ASSET KUID list while keeping the KUID numbers and separated by commas (,), you can then import that KUID list back in to get your assets in your pick-lists. The pick-lists can then be easily recreated in Content Manager again by adding those assets to a new pick-list as needed.