You have two choices:
- You can use the Vertical Data tabulation dialog in the Fields menu.
- You can use the preferences to switch the menus to “Classic” mode, which will give you the Math menu back.
FYI, in Panorama X the propagate function is found in the Morph submenu of the Field menu. It is back as a separate menu item like it was in Panorama 5.5 and earlier, instead of being part of a larger dialog.