Hotspots are only visible when you select the object (label).
There is no way to make a hotspot visible without selecting that I know of.
Textblock handles are completely different to hotspots and can’t be scripted.
They simply show the extents of the text box.
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