Bind S3 Provider Access Key to dynamic value

Good morning,

is there a chance I can bind the AK and SK of my global S3 provider to dynamic values? There are icons for this, however as this is under Globals, I can’t add any additional steps (like querying the database where user individual AK/SK is stored and these are the values I’d like to bind the provider to).

And when I add the S3 provider (or a sign step for example) to an API action, it just allows me to select to respective provider, no options to select AK/SK.

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Thanks
Sebastian