Hello
In ordasoft
joomla cck change select field very simply
Please check:
joomla cck select list field
Most important points:
1 Go to admin->components->cck->layouts
2 select any "Add Instance layout" for your entity,
3 Open so layout for edit, ans at left side bar press "Add new" field
4 You go to "Field manager" - there you may Create new fields or edit fields which you already have
Regards
Ordasoft team