That is just a simple hotspot.
It is not a graphical (adjustable) hotspot.
You need to add the graphical hotspots and then an ADD2 x,y to transform your marker position to match the hotspot values.
Barry.
Versions 6.5 to 22
Dell XPS- i7-6700 @ 3.4Ghz, 16GB ram, GeForce GTX 960 (2GB), Windows 10
Dell Precision M6800 - i7 4700MQ @ 2.40GHz, 16GB RAM, AMD FirePro M6100 (2GB), Windows 7 64bit