https://doc.qt.io/qt-6/qml-qtquick-sequentialanimation.html
SequentialAnimation QML Type | Qt Quick | Qt 6.11.1
Allows animations to be run sequentially.
qt quickqmltype
https://forum.qt.io/topic/48622/solved-accessing-a-sequentialanimation-from-c
[SOLVED] Accessing a SequentialAnimation from c++ | Qt Forum
from csolvedaccessingqtforum