On Windows (only for making license not patching the required files):
1- First create a new folder somewhere. For example on the drive C. Name it anything. Notice that the folder's name must not have Space between its characters, otherwise it won't work. For example name it Butter.
2- Search for "mgc.pkginfo" files inside your installed mentor product's folder. After finding them, copy one of them to the Butter Folder.
3- Copy "MentorKG.exe" to the Butter folder too.
4- Open a CMD window and go to the folder Butter and Run: MentorKG -patch C:\Butter
(This command searches the license features inside "mgc.pkginfo" file in the Butter folder and makes a license file in the notepad.)