Automatic blemish detection is now included in the Remove menu. I don't think it is perfect yet, only tried it on a couple of photos, but, feel free to open an issue if the performance is not satisfactory, as with the import of Lightroom presets. It would be under Presets/Import Lightroom presets. Thank you!
Finally getting around to taking a look at Rembrandt. Doing a side by side comparison to how it works compared to Lightroom. First thing I noticed, not being able to take a selection of images from Photo Mechanic and not being able to click/drag to Rembrandt to get them to open in Rembrandt.