After the update, 13.0v5 I thought the many missing shortcut menu items would return full time. Did not happen. After a couple of dozen trips to the layout mode they disappeared. This includes shortcuts for the following: layout, group, new layout/report (who cares about this one), duplicate layout (who cares about this one also). What does now work is when in the layout mode and double clicking a field and then showing the field name. Please fix this. I have a feeling the problem is exclusively Yosemite, period.
If you read the release notes for this update, you'll notice that no mention of fixing this issue is listed.
If you read the numerous issue reports in Report an issue on this issue, you may notice that FileMaker considers this a Mac OS bug and have asked Apple to correct the issue.