Can we use onedrive as a storage for attachments? and how

No

There's been a proof of concept for Amazon S3-compatible storage, but it's not supported.  You would need to custom develop your own storage bridge.   

That display name... I almost had a seizure trying to read it. Or did someone type it while having one? 

I wanted to buy my license fast ast light so that's why you got seizures from my name, ok ty joel