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At this time I will share, How to move the blogger category

Example: We'll move all post label Javascript to JS

  1. Filter and Choose the label Select Label
  2. Select spesific or all filtered posts you want to add label Select Posts To Add
  3. add new category label (Auto Added New label) Add New Label
  4. Done, you've added new label to the selected posts

    Continue: How to remove category label from blogger posts