Custom Field Renderer! Maybe using a Custom Setting to source your list! To the rescue!
Here are some forum posts that may help:
https://community.skuid.com/t/a-drop-down-list-from-a-custom-setting
https://community.skuid.com/t/how-do-i-render-custom-picklist-values
https://community.skuid.com/t/custom-picklist-renderer-when-option-source-is-a-model
