How do I modify the units used to edit map elements/graphics?

Question

I have several lines, rectangles etc in a layout within ArcGIS Pro 2.3.3 and I am setting up a new layout in the same project.

In my original layout all the units were in mm, I don't recall changing any settings to make this happen, I assume these were how the units are to begin with.

I am now creating another layout, but when i customize my elements in this new layout the settings are all in cm, and I have no idea why.

I am wanting to make these uniform, and use mm in both.

I found in the settings this page, I have set to mm, but this has had no effect:

Can someone please point me to the setting I am looking for??

Cheers

KoryKramer · Accepted Answer

I'm not entirely sure about the default not working, but if you go to the page's properties

you can set the page units there and the graphics should then default to mm.

I'll ping somebody on the layout team to make sure they look at the behavior with setting the default Page units for the project.