HiAlthough I have done a few simple gauges I

It's quite easy - If the LL(s) are on AND the RL(s) are off, then toggle RL(s). If LL(s) are off AND RL(s) are on, then toggle RL(s)

 <Update>(A:LIGHT LANDING, bool) (A:LIGHT RECOGNITION, bool) ! and if{ (>K:TOGGLE_RECOGNITION_LIGHTS) }(A:LIGHT LANDING, bool) ! (A:LIGHT RECOGNITION, bool) and if{ (>K:TOGGLE_RECOGNITION_LIGHTS) }</Update>

Hope this helps..Roman

Hi RomanThanks for taking the time to have a look at this, just a quick newbie question, in the code example I take it that the code would have to include the .. <Element>and <Select>At the beginning and end of your example?Jim H

Hi RomanPlease disregard the last posting, with a bit of trial and error (actually like most of my gauge work more error than trial) I have the gauge operational, once again thank you very much for the help and assistance.Jim Hodkinson