Writing this is above my programming skills, and it is very important for seamless workflow.
This is my request to the developers, to consider shortening these suffixes in the source:
_fused, _blended_fused, _exposure_layers, _stack to one or two characters.
Or let the user define the suffixes in settings.
Below an example: a panorama created from stacks and any arrangement
One suffix is _blended_fused, the other is _fused.
Now merging both panoramas, using selectve masking.
It will create new files, named _blended_fused_blended_fused and so on. It depends how many times it will be processed.
... and there are hundreds or such panoramas to process.