Hi Eckart
Apologies if you thought I was complaining about you. What I was attempting to do was save Bob doing any more work on making the matrix signal mast use 10 outputs. As it has been in existance for three years now and so far it has not been necessary to have more inputs, it would seem to be OK as it is. You did not state in your original post that you didn't want any extra hardware so that may be where the misunderstanding was.
You say you don't want more hardware but in your scheme you will use 9 outputs to drive 9 lamps. If you can use an inexpensive and simple piece of hardware to allow you to use less than half the number of outputs required to 4 then that to me sounds like a good trade. You may feel otherwise of course.
Fraser
