[Feature] Want to set up a tracking script

[B3n]

Checklist

• I searched existing issues and no one else requests similar feature. | 我搜索了现有的问题，没有人要求类似的功能。
• I think that 25%+ users are positive towards this feature. | 我认为 25% 以上的用户需要这个功能。

Describe the feature | 功能/建议

When I deploy this project myself, I need to see how many of my customers use this function.
So, I want to set up a tracking script, where can I set it ?

Additional context | 补充说明

Not yet.

[rockbenben]

The tracking code is in plugins\piwik.js, and you can replace it with your own tracking script.