Thank you. It works.
But it turns out that it doesn’t matter at what point in time I select "change all, it’s important to click on an empty field in the "Object Properties" window to remove the cursor from the parameter editing windo…
Thank you for the answer.
Yes, I mean the Pcell element. When I select multiple elements and then edit>properties>change all I need to change the properties on each element individually and in turn (i.e. manually change the setting on each PС…