Ctrl-F should bring up a bottom bar prompt to enter a search term. On Enter a ["search"] region will be prepended to any bit of text that matches the search, with a [""] after it. Link selecting will have to be disabled, maybe with some global per-tab mode setting that switches between link, off, and search. Tab and Backtab can be used to navigate through all the found text fragments. Esc should switch the global per-tab mode back to off, and maybe use a regex to remove all the region open and close tags for the search.