At the moment, pressing spacebar only plays the current sub-selection.
However, we should make it so that if no verification grid tiles are selected, and the user presses spacebar (or the associated playing keyboard shortcut), then all the spectrograms should begin to play.
This is especially annoying when viewing a 1x1 grid that does not allow sub-selection meaning that it is impossible to play using keyboard shortcuts.
At the moment, pressing spacebar only plays the current sub-selection.
However, we should make it so that if no verification grid tiles are selected, and the user presses spacebar (or the associated playing keyboard shortcut), then all the spectrograms should begin to play.
This is especially annoying when viewing a 1x1 grid that does not allow sub-selection meaning that it is impossible to play using keyboard shortcuts.