You will be able to manually refresh data for existing Imports with CSV Endpoint, JSON and Database Import Types.
To Manually Refresh Data in a Table:
1. On the sidebar menu, click on the drop-down arrow next to the desired table, and click Import Data. This will display the Import Data Page.
2. Click the Reload icon next to the desired data import record.
3. Click OK to confirm the reload. The data should now be updated in your table.