Do you want to delete an object or all objects of this entity.
If you want to delete the whole table, you need to create a microflow that retrieves all of them and then use the delete Action.
if you have a lot of data to delete, you should think about to run the delete action not in one list or in a lot of small delete actions, you could create small batches of lists and then delete the small batches.
More information you can find in the Academy section.
In a microflow, use the Delete action.
Or, in a datagrid, use a Delete button in the control bar.