About the keywords

I am using the keyword option more now I understand better how this works, and I see it as a great way to find something quickly. However, right now I have more then 10 key words in every single document in my project and when I do a search for it, it still takes a long time to find the place of the word, because the whole document opens as normal without showing me that word. Would it be possible to get some kind of bookmark function attached to a keyword so that the word opens at top of the screen or at the cursor or highlighted?

A keyword search doesn’t search for the keywords within the document itself, it searches for keywords in the keywords pane in the inspector. Do a normal search to have the words highlighted in the document. Then use the normal Find panel (cmd-F) to cycle through them.
All the best,
Keith