I'd like to use the IDE IntelliJ Idea and not the terminal to execute the command
git update-index --assume-unchanged <file>
I hope there is a tool so that I can do a multiple selection of files to assume unchanged. Anyway I cannot find such a feature. Is there any way to do this from the IDE without using the terminal?
No, it is not possible from IDEA. https://youtrack.jetbrains.com/issue/IDEA-76682