It's possible to update Kentico items imported from GatherContent. Just follow these steps to update an item:

Select update option

Select “Update” in menu and select a node you want to update items under.

Select items to update

The dialog will show all items located under the selected node that were previously imported from GatherContent. You can select the items to update and click “Next”.

View results screen

The update process is similar to the import process. It ends with a results screen where you can view how many items were updated, and if there are any errors.

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