Here is an unexpected surprise: My reinstall of Pinn 23 carries with it a feature of Pinn 25.
I upgraded to 25 for one reason: its ability to copy audio effects from clip to clip.
(I often have multiple clips requiring the same Equalizer changes. With Pinn 23 that meant re-entering all the changes on each clip, a time consuming job.)
Pinn 23 works well on my computer, Pinn 25 does not, so I have had to revert to 23.
To my amazement, the ability to copy audio effects clip to clip now exists on Pinn 23.
I don't know why this feature now appears in my reinstalled Pinn23, but happy to have it.
NOTE: that phenomenon was short-lived and Pinn 23 is now as before..