I have over 300 Maps with bookmarks in one project and when I go to add a map frame to a layout they are sorted randomly.
Are you referring to the Insert > Map Frame button in the ribbon?
We can also use the Catalog Pane to drag Map Frames in. Either scroll through your Projects Maps or search in Catalog and drag the map in from the results.
Many thanks Dan and Chris this will work for me. I can drag the map frame onto the layout and then in (TOC) contents zoom to layer.
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