Is it possible to deindex multiple pages at once?

Yes. The module lists let you select NoIndex for several items before saving.

1. Open the tab for the pages you want to manage and select the shop and language.
2. Use the filters and items-per-page setting to display the required batch, then apply the filter.
3. Check the relevant items or use Check all in the NoIndex column.
4. Save, then reload the list to check that the selections were retained. Repeat for the next list pages if needed. If a large batch is not saved in full, reduce the number of displayed items and check each batch.

Important: bulk selection affects the items in the displayed list. It does not automatically select items on subsequent pages. NoFollow remains a separate choice.

For shared CMS pages, NoIndex can also affect other languages and shops sharing those pages, as explained in the interface warning.

Then check a few URLs using the verification procedure. Bulk processing saves directives; it does not guarantee immediate removal of hundreds of pages from Google.

Optional video: the written procedure above is sufficient on its own.