I'm using LR 6.0.1 and started facedetecion for my library. Then I worked through my folders and added the unknown persons to the known persons section.
Unfortunately in one of these folders I'm missing a complete person - it seems I completly deleted either the unknown persons or the knownperson.
Anyway, I would like to restart the indexing or recognition process for just this one folder. I couldn't find a menue item or function to start this process (I konw that a start the recognition process for the whole library in the panel menue)