Is there a feature that replicates the hotlink function in OST? or something similar?
Not yet, but it is on our radar and I am pretty it is planned. The dev teammight have a schedule.
I've been using OST for 8 years and just learned about that the other day since I always have Bluebeam open, it was never needed for me....but now that I don't use bluebeam I kind of need it. Yeah +1 for me with hotlinks along with auto-hypelink all the sections!
We have a Hyperlink tool that is on our Test Server if you want to give it a try and let us know what you think.

Example hyperlink properties:

You can also just drag & drop either a Page or Bookmark from the left sidebar onto the page to create a hyperlink:

Here is me doing it in a 60second video. LINK
Love it, but you know there is always a "but" with me. Really love to have a "Copy from screenshot" button in there as shown in vid.