In this workshop, for easy setup we need to use region us-east-1 for access all models because the common models is available just in us-east-1,
you can check them at this link
In the AWS console search “Amazon Bedrock” with region is us-east-1
Select 3 lines icon at the left panel
At the left panel, from Bedrock configurations > Model access > Enable all models
Tick top icon to choose all models, or you can specified models
Choose Next
You can enter any information for your request access, then you choose Next