At Artistanbul, we usually have multiple repositories for a client and a release often requires running a pipeline on some or all of them. Besides the pain of managing environment variables, the second annoying thing about Gitlab CI is lack of a dashboard to see all pipelines of a group. There is a 4 years old issue about it (still active though).
I created gitlabci for this reason. You can see the usage, download the binary for your OS, submit bugs and feature request on Github. All contributions are welcome!