so yeah i as the tittle said i want to know how to use the entiy manipulators so yeah if anyone could help i would be very thankful

at the side there is entity name just put the name of a mob Eg. thedalekmod.DMDalekbase for a dalek or thedalekmod.DMCyberman for a cyberman or Pig for pig and Zombie for zombie ect

Along with FuzzyLeo's comment, if you save your entity then go back into the manipulator, at the end of the Json path thingy inside the } type DalekID or CybermanID then put :1 (or any other number that has that many of said mob, my personal favourite is DalekID:31) and that will change the type of Dalek/Cyberman