I've inherited from a colleague a huge slide deck, but he doesn't use animation on any slides.

I'd like to do a one-click conversion of the slide deck to incorporate a very simple animation scheme.

I understand how to use the animation painter to copy the animation effects from one slide to a single other slide. But in spite of what Microsoft blithely says in this url, it's not a trivial matter to copy the same scheme 100 times to each slide individually. It's very hard to believe that Powerpoint is so primitive that it doesn't provide a one-click option, but there's nothing about it on the web.

One possible approach would be:

1. set up a template in which my preferred animation scheme is applied to every bullet point list by default
2. open a new presentation
3. import the old unanimated presentation into the new one
4. then hopefully the imported presentation would have the templated animation characteristics.

I've no idea if

1. I can set up a template as proposed
2. my inheritance idea would work

Could anybody advise please?