Breadcumb document history

Currently, there is no way to back to a previous document if you click on a document link inside a document. The _breadcumb document history_ will act as a general trace, so if i click on a document link inside the actual document, the _breadcumb document history_ will update with the new document visited, and acts like a history: Example: 1. I navigate to a document, so the "breadcumb" history shows like this (I will use 3 history elements for commodity. but around 5 items will be perfect): [Collection X] [Document 1] [Subdocument 1] 2. If i click on a document [Doc 2] link inside Subdocument 1, the breadcumbs will show something like this: [Document 1] [Subdocument 1] [Doc 2] 3. If i click on [Document 1] breadcumb history, only removes the elements on the right side instead of adding one to the right. [Document 1] _[Removed Subdocument 1]_ _[Removed Doc 2]_ The resulting history trace will be like this: 1. [Collection X] [Document 1] [Subdocument 1] 2. …