I have not tested this outside of comparing the gcode between SuperSlicer and Cura. Values were within 1mm of of each corresponding value.
I don't know python and have no interest in learning it, hopefully someone can clean this up.
START_PRINT BED_TEMP={material_bed_temperature_layer_0} EXTRUDER_TEMP={material_print_temperature_layer_0} AREA_START_X=%MINX% AREA_START_Y=%MINY% AREA_END_X=%MAXX% AREA_END_Y=%MAXY%
It works !!!
[dapostol73]
(https://github.com/dapostol73) 2 hours ago
I have it working with Cura 5.0, for that version it lives here:
C:\Program Files\Ultimaker Cura 5.0.0\share\cura\plugins\PostProcessingPlugin\scripts