"floating" dates and legend in roadmaps

I am using Aha to manage a very large program of work, and thus our roadmaps are similarly large (a PDF export once was 12 pages!). The legend appears only at the bottom of the whole roadmap, so it is hard to know what the bar colors represent unless you scroll all the way to the bottom. Similar problem, when publishing the roadmap in a dashboard or on a webpage the dates are only at the top and disappear when you scroll down, and the legend remains only at the bottom.

The lack of dates and legends always being visible makes the roadmaps harder to understand, especially for senior stakeholders who are interacting with the data in the form of dashboards and published webpages.

Both the date line and the legend should "float" to always stay at the top / bottom of the roadmap, as the dates do when looking at the roadmap. This could be a setting that is turned on or off, but the default should be that the dates and legend are always visible when scrolling.