The absence of a direct "schedule update" option under the "Index" button in Azure AI Studio's "Components" section can indeed seem inconsistent, especially since a similar feature is available in the "Chat Playground" when adding data.
This difference arises because Azure AI Studio integrates various services like Azure AI Search, which has a more explicit way to schedule updates through the search indexer itself. However, when working within AI Studio, scheduling can sometimes feel less intuitive. To schedule updates for your index, you generally need to do so through Azure AI Search or Azure Machine Learning, where you can define and manage an indexer that updates the data on a schedule (daily or hourly).
In cases like yours, users are encouraged to configure the indexer via the Azure AI Search portal. This involves selecting your Blob Storage as the data source, linking it to Azure AI Search, and then configuring the schedule for updates directly through the search service rather than through AI Studio's "Components" section.
For those working with data via the AI Studio interface, the lack of direct scheduling for index updates is indeed a limitation. The "Components" menu focuses more on the creation and management of indexes rather than the scheduling features, which are handled more robustly in the underlying Azure AI Search service. You might find it more reliable to set up scheduling directly in Azure AI Search or manage it via an external tool like Azure ML Studio.
https://learn.microsoft.com/en-us/azure/ai-studio/how-to/index-add