Possible to add Brand Store validation sets without Brand Store credentials?

Hey there,

Is it possible to push a new validation-set to our Brand Store without the Brand Store credentials?

Basically, we would like to reduce the steps that need the Brand Store credentials as much as possible when managing our Ubuntu Core product; especially for actions that need to be done very regularly, such as uploading validation-sets.

Is it somehow possible to give the rights to upload a validation-set signed by the Brand Store from a different account?

Kind regards, Charlee