private void AddInputPinOnKeyUp(object sender, KeyEventArgs e)
{
if (e.KeyData == Keys.Subtract)
{
if (ExtraVariableInputs > 0)
{
int index = InputsSet.Count - 1;
var io = InputsSet[index];
InputsSet.Remove(index);
RenderingEngine.CurrentProject.RemoveConnection(io);
ExtraVariableInputs--;
}
}
}
