I have some signal markers based on the zigzag indicator.
I want them to show only on the last bar of a swing if true.
Is there any way for signals that have fired true to disappear if the zigzag extends, and
because of this extending, are no longer true?
I've attached a screenshot.

Hello,
Signal formulas involving Zig zag oscillator tokens require a special ALL:ALL compute/display settings
Read more about it at the end of the "Preferences" tab of the Signal Marker support page
Attached the link to a chart with signal markers highlighting zigzag pivot points.
https://www.linnsoft.com/charts/01-signal-marker-w-zz-esm6
As explained in this video, ZZO token values are only confirmed after X bars, whenever the retracement criteria of the ongoing (last, ie non confirmed) pivot is reached
ALL:ALL guarantees that the indicator will be re-evaluated after the pivot bar takes place.
Thanks, Eddy. I'm glad I asked.