kvak wrote: Tue Jan 11, 2022 6:23 am Look here....viewtopic.php?p=1295449957#p1295449957

I actually have actually seen that, however, I use the version I posted here in a different way, the magenta line in the middle is missing from the other button enabled version. When the line cross the middle line of MA, I have a conference . That's why I posted this version for button. I'm still working on the strategy, perhaps you can help me know what the magenta line represent, maybe there is alternative for this request . Thanks