Table of content on the left-hand side. Possible?

I think it would be handy to jump in between headers by clicking an item on the table of content. The item on the table of content represents a section.

It would make sense to me to place the table of content on the left side and set it to be available all the time.

[JannahS]

Any chance to follow up on the above suggestion ?

[davisj95]

I would love to see this feature as well!