public IEnumerable <ButtonSetup>?GetAllButtons()
{
if (Buttons != null)
{
foreach (var button in Buttons.GetAllButtons())
{
yield return(button);
}
}
if (Panes != null)
{
foreach (var button in Panes.SelectMany(pane => pane.Buttons.GetAllButtons()))
{
yield return(button);
}
}
}
