What are those controls?

What are those controls in the photo, i.e. the rectangle and the bar? What are their names and functionality in FlightData?

These (yellow markers) are the waypoints of your mission and shows a progress bar indicating where aircraft / vehicle is in relation to total mission.
…Handy as on longer distance mission not the whole mission is visible on the map.
Эти (желтые маркеры) являются путевыми точками вашей миссии и показывают индикатор выполнения, указывающий, где находится самолет / транспортное средство по отношению к общей миссии.
b7e74f570e1d80da7b84969fc3ca4b62dcde8a5c.jpeg (1319×600) (ardupilot.org)

What is this bar on the HUD? - Ground Control Software / Mission Planner - ArduPilot Discourse

What is the meaning of pink line here? - Ground Control Software / Mission Planner - ArduPilot Discourse