I want to add external volume in my Linode server.

Hello everyone, I want to add extra 10GB external storage in my Linode server, I am using aaPanel to manage my server And my server OS is Ubuntu 22.04 , So now how can I add extra storage (Like i have $5 plan with 25GB storage, And i need to add extra 10GB Now it's 25+10 = 35GB) I don't have much knowledge in server, So anyone can help me step by step?

Thanks ❤️