batch application; applying collectively
Used in business, IT, and administrative contexts for applying a rule, setting, or process to multiple items at once.
Apply the new settings to all users at once.
Using the batch application feature, you can make the same changes to multiple files at once.
一括 means 'lump sum' or 'collectively'; 一括適用 is the specific act of applying something in a batch.
適用 means 'application' or 'applying'; 一括適用 specifies that the application is done collectively.
Compound of 一括 (いっかつ, 'lump sum, collective') and 適用 (てきよう, 'application').