An "access" on the NewBanking Identity platform is to be considered as a permission to share a group of data. This group of data is shared to a company with your explicit permission. At the essence, NewBanking Identity can be considered an access management system, you can manage your accesses (to your data) through NewBanking Identity.
You can manage your accesses through your NewBanking Identity account - just go to https://newbanking.com/me/#/consents/all
The primary way to make an access is through the NewBanking widget.