I believe that can implemented in a web browser via careful implementation of bookmarking.
For the RPi I created a topic that has links to various solutions to issues with the RPi.
Or copying and pasting links to a local html file. One could even create a GitHub repo for this purpose, organising links of similar topics into folders.
Or even a simple database on one's home computer, which would give you the ability to search by keywords. Or you could get real fancy and use PHP to connect to the database and have a browser based solution GUI for searching and returning the results as a direct link.
Look the current version of the forum software has a barely usable editor, anyways this kind of feature would be best suggested to the authors of the forum software.