Navigate By (.uno:NavElement) toolbar control was added in bug 79167 to the Find Toolbar in LibreOffice 6.0.
(In reply to Yousuf Philips (jay) (retired) from comment #0) > Navigate By (.uno:NavElement) toolbar control was added in bug 79167 to the > Find Toolbar in LibreOffice 6.0. ... along with the companion navigation arrows Previous Element (.uno:ScrollToPrevious) and Next Element (.uno:ScrollToNext). However, all three were by default hidden from the Find Toolbar in 7.1. (See e70069fb72d52c20b28166708a217bf674dcb61b for bug 129471) We still have these three controls in the Navigator (since OOo times). Note that we also have a "Navigation" toolbar that has the Back (.uno:NavigateBack) and Forward (.uno:NavigateForward) arrows to navigate a history of cursor positions; however, it's mostly made obsolete since LO 7.2 by the fix for bug 115817, superseding it with the "Recency" element in the Navigate By dropdown, + use of .uno:ScrollToPrevious and .uno:ScrollToNext arrows.