Blender Addon | Hair_Extension_Toolkit

Introduction:
Hair_Extension_Toolkit is an add-on that highly enhances the controllability of the hair in Blender. There are many practical functions, like merging and splitting particle systems, resetting the number, steps, and length of the guides, applying the effect of children to the guides, recording the hair selections (There is a PieMenu about hair selections), etc., thus greatly helping users improve the efficiency of the creation of the hair.
https://www.artstation.com/a/547702