Toggl Track Header

Please add a feature to collapse the entire “header” of the software (everything above the bar with the day and running total). I use Toggl in a reduced window on one side of my monitor. It takes up about one-fifth of the monitor which is just enough space to see my schedule in Day View and add entries. The header takes up about two-fifths of this space. I would like to be able to collapse it, as other software/apps allow so I get the full screen for just calendar space.