In response to #314: Kepler/TESS and QLP observation sources were updated: reference Kepler or TESS magnitude read from the header is stored and displayed in the new column ("Kepler magnitude" or "TESS magnitude" respectively); the "Quality" field was added to Kepler/TESS (the field already existed in the QLP plug-in).
So now the user may exclude any bad points, check for the median or mean using the "Descriptive statistics by series" plug-in, and shift the baseline with the "Magnitude baseline shifter" (one of the possible approaches).
In response to #314: Kepler/TESS and QLP observation sources were updated: reference Kepler or TESS magnitude read from the header is stored and displayed in the new column ("Kepler magnitude" or "TESS magnitude" respectively); the "Quality" field was added to Kepler/TESS (the field already existed in the QLP plug-in).
So now the user may exclude any bad points, check for the median or mean using the "Descriptive statistics by series" plug-in, and shift the baseline with the "Magnitude baseline shifter" (one of the possible approaches).
I've attached a TESS_Kepler_TESSQLP_examples.zip with samples.