FModel/FModel/ViewModels/Commands/AddTabCommand.cs

using FModel.Framework;

namespace FModel.ViewModels.Commands
{
    public class AddTabCommand : ViewModelCommand<TabControlViewModel>
    {
        public AddTabCommand(TabControlViewModel contextViewModel) : base(contextViewModel)
        {
        }

        public override void Execute(TabControlViewModel contextViewModel, object parameter)
        {
            contextViewModel.AddTab();
        }
    }
}