private void AddMainUnit(int id)
{
if (!LibraryData.SystemIsOpen)
{
LibraryData.CreateEmptySystem();
}
var esc = LibraryData.AddEsc(id);
if (esc == null)
{
return;
}
var escview = new MainUnitViewModel(esc, this);
if (!TabCollection.Contains(escview))
{
TabCollection.Add(escview);
}
}