hello @Deleted Account - if your changes can be applied uniformly to all changes i.e. you change experience just once and all the pages are updated then yes there are a three ways to achieve your objective:
1. If you are able to find a common pattern in the URLs of all the pages e.g. all pages' URLs contains "/pdp/" then you can use Page Delivery part of VEC.

2. My preferred option: Send an mbox parameter with a common value from all these pages. You can then create an audience and use that in your activity. Its a more flexible way as you can easily target any pages, even if URLs do not follow a pattern.
3. If both of the options above are not possible - then you can manually enter the Page URLs under Page template section, by separating them by "Enter".
Irrespective of any approach you take, I'd suggest keeping a close eye on the activity to ensure:
1. It does not target any unintended pages.
2. Changes in pages' structure which may impact the experience delivery.
Hope this helps
Regards
Rajneesh