Log on to Microsoft One Drive webpage
Click on the desired group/team name located on the left side of the window.
Click on theĀ group/team iconĀ located at the top of the window.
Click on the members link located under your name in the upper right corner of the window.
To delete or change status (Member/Owner), click on the current status and select the desired choice.
To add additional members and/or owners, click on the Add members button.
Enter the email address(es) of additional members and/or owners in the Add colleagues to this group area.
Click on the Save button.
Use the previous step to change desired members to owners.
Click on the X located at the upper right corner of this area (NOT the Office 365 SharePoint webpage window).
Click on the back button on the web browser to return to the Office 365 OneDrive webpage.