Yes I had already found:
"You can use the "Select photos with GPS" command on the Edit menu. The selected images have GPS coordinates. The rest of the images do not have GPS coordinates. If you now want to work with the images that do not have GPS coordinates, then use the "Select Others (invert)" command on the Edit menu after you use the "Select photos with GPS" command."
But having the images in context of each other helps because it is often just the first few or odd ones during a sequence where the camera gps fails to pick up the satellites and the adjacent images have the correct location rather than having to remember yourself.