• Enter processor
• add pole A with index 1
• name pole A: "pole A"
• set pole A to input
• add lamp and connect to lamp set to color mode
• connect lamp to pole A
• add pole B with index 1
• name pole B: "pole B"
• set pole B to output
• add constant combinator C with random value
• connect constant combinator C to pole B
• exit processor in packed mode
• add pole
• connect pole to processor access point 1
• add constant combinator D
• set color green in constant combinator D
• connect constant combinator D to processor access point 1

  processor shows green lamp
  processor shows on access point 1 only the text "pole A"
  data on pole shows the random value of constant combinator C
  processor shows that access point 1 is only input

There is no synchronization between the input/output with the same index. It is deliberate. It allows to change the index freely without weird interactions. Maybe i can add some graphic for pole with the same index.