You can duplicate any job you want by using Actions > Duplicate when you're in the details of the job, or by clicking on the three dots at the end of the line in your list of jobs. This can be useful, for example, if you have a translation job and you wish to create a revision job containing the same data (only a different service).
Whatever option you choose (from the job itself or from the list of jobs), the system will open a popup in which all the data from the copied job are already filled in (but you can of course change it before saving the copy of the job).
If you wish to put the new job in a group with the job you first duplicated, don't forget to toggle the corresponding option in this popup.
To know more about the grouping functionality, see this article: http://help.lsp.expert/groups-projects/getting-started-with-groupsprojects-containing-several-jobs