Hi,
Do you want to navigate through specific part of large document in a single click or you have multiple documents and you want to reach those documents in a single click?

1. You can add bookmark in Word to navigate easily to specific part of large document by following these steps.

• Click where you want to insert bookmark.
• On Menu bar click on Insert.
• On the Insert tab, in Links group, click Bookmark.
• Under Bookmark name, type or select a name.
• Now click on Add.

2. You can add hyperlinks for multiple documents in a specific document and you can reach all documents by single click on hyperlinks.

Follow these steps to do it.

• Select the text which you want to make hyperlink.
• On Menu bar click on Insert.
• On the Insert tab, in Links group, click Hyperlink.
• In the Insert Hyperlink window select your document and clcik Ok.