Customize a Collaborate Document To customize your document, take the following steps: Open the Properties panel on the right side of your screen, and click the Metadata tab. Fill in all the fields in the tab. Click back on your proposal page to customize specific content using the online Editor. Enable the Previewbutton for a preview of how your content will look after you publish it. Note: As an admin, you can control which users have access to make edits in documents and which pages are editable.