I have a set of labels in an ArcGIS Pro map. I remember in ArcMap you could create the annotations in the MXD and set the reference scale to 0, which would give you dynamic labels at any map scale.
I'm struggling to figure out how to obtain the same result in Pro. I've got the Convert Labels to Annotation tool which doesn't seem to do dynamic layers, only offering me a pulldown menu of fixed conversion scales.
Can someone tell me how to create annotations, which I can publish via service, that display at a constant page/screen dimension?