Read through another thread
, and now posting relevant info here.
To install mods on the App Store version of KotOR:
Go to Applications folder.
*Causes Errors or has no effect pending mod type.
Right-click Knights of the Old Republic package.
Select "Show Package Contents"
Navigate to Knights of the Old republic>Content>KOTOR Data
Create Override folder.*
More info can be found in this post
(For the newcomers¹)
Instructions on installing KSE on your Mac here