Ability to Add Custom Markers On Bars Screen

[inventor7777]

I use telemetry in all of my R/C surface models. I often use the Bars screen as it is simple and uncluttered. However, I would like an option to add custom markers along the lines instead of the quarter lines. I mocked up what that could look like on a B&W radio below. (The lower image is how it looks currently)

It would come in useful, for example, to know your ESC cutoff voltage in addition to the lowest part of the bar, which would be
programmed to the last safe voltage for your LiPo battery.