Without testing all the templates, I'm pretty sure none of them offer that. I would hazard a guess it's because it makes finding the main sections harder. See your second image where some are not visible without scrolling.
Please follow this link to report bugs or request new features. https://tracker.adobe.com. Post the link to your bug report / feature request in this thread and others can vote for it. The more people who do so, the higher it gets prioritised.
BTW. Update 3 is available but as you are on 2022.1, Help > Updates will not work. See https://community.adobe.com/t5/robohelp-discussions/update-3-of-robohelp-2022-release-is-now-available/td-p/13990870
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My site www.grainge.org includes many free Authoring and RoboHelp resources that may be of help.
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