To customize the doc viewer toolbar, hover over the vertical dots at the top of the page, then select "Customize."

Select the tools you want in the toolbar and rearrange to your desired locations. Click Save and Close.

To customize review tools in the document viewer, click "Customize" in the bottom right corner of the document viewer.

Select the tools you want in the toolbar and rearrange to your desired locations. Click Save and Close.

The toolbar will now reflect the changes you made.