Mod «Free Division Editing» for Hearts of Iron 4 (v1.9.0 - 1.9.3)
The Free Division Editing mod eliminates the army experience cost for editing division templates, equipment variants, and ship classes.
No need to actually wage war in order to change the functions of your divisions, it's now free.
How to install mod?
To install the mod for the game Hearts of Iron 4, unpack the contents of the archive to the folder Documents\Paradox Interactive\Hearts of Iron IV\mod and enable the modification in the launcher.