Microsoft Excel nodes > posisblity to use other credentials

Currently, I’m working on an automation that creates and updates files in our Sharepoint. However, in the Excel nodes (with Update or Append Row for example) I can only use the Excel Credentials for my OneDrive.

Is it possible to add different credentials (the generic OAuth2 API in my case) to Choose from so that I can actually use these nodes instead of creating my own custom excel-nodes?