Hi Ken,
We reworked and improved Styles window in V11:
https://www.pteavstudio.com/forums/topic/33520-new-possibilities-of-slide-styles-window/
Dave wrote you above about one of several improvements - "Keep slide order" option.
2. Also we added a series of new built-in styles:
https://www.youtube.com/watch?v=e7Y5oKCeMSU
V11 includes many important improvements and new effects: https://www.wnsoft.com/en/pte-av-studio/whats-new-11/
Text animations, directional Blur, blur with bokeh in real time, Displacement map effect. If you re-arrange objects, drag'n'drop with mouse cursor in the Tree of objects will save you a lot of time. See a full list of new features from the link above.
We believe and hope that all these improvements deserve 49 USD for the upgrade from V9 or V10.