You can use Place marker option to put a projection of existing marker on photo.
In the version 1.3 there would be a possibility to choose New Marker option from the Place Marker menu, thus you do not need to create new marker instance first.
Not sure I explained well what my issue is:
In 1.3, I place a marker on one photo. Automatically, PS creates (blue flagged) markers in all the other photos. Unfortunately, these blue markers are often in wrong locations. In version 1.26, placing one marker in a photo would create epipolar lines in the other photos; then, upon placement of the next marker, all other photos would get a grey marker suggestion, which is fine. Now in 1.3, that grey suggestion stage seems to be replaced. Since the blue markers are in wrong locations, I get very bad refinement. Is there a way to prevent those blue markers?