Creating a numbered list without periods in Powerpoint

In Microsoft Powerpoint 2016, how do I create a numbered list without any periods that continues across slides?

For example:

Slide 1:
1
2

Slide2:
3
4

This is a bit bizarre, and it may only apply to some versions of PPT (I've since tested using 365, 2019 and 2010 under Windows; works in all of them), but assuming you've added a new slide (Title and Content) and clicked into the Content placeholder:

Type 1 then TAB then the text for your first numbered point. If the line wraps, it'll look wrong but keep typing.

When you press ENTER at the end of the first line, it'll fix the indents and add a new line with 2 in place already.

It won't automatically continue numbering on the next slide, but if you start with, e.g. 5 then TAB, it'll keep up the numbering from there.

Editing? Good luck with that. Once it's sort of halfway decided that the numbers are numbers/bullets, it won't let you change them.