When applying for a software license, you need to fill in the number of lines of code of the software. Here, you can count as follows:
First find settings in file here.
Then there is a plugin here in settings, after finding it
Search, statistic find this plugin, and then install it.
After installation, in the tools in settings, there is a statistic here
Click once, and then: you can see the directories, files, etc. that can be filled in on the right without statistics.