If you haven't checked out the Unitronics Youtube for awhile, you may want to check out our UniLogic Tech Tidbits Playlist. The most recent Tidbit shows you how to create your own, reusable HMI Custom Controls.
After you create a control, you can drag and drop it from the Solution Explorer, export/import it between projects as .uluce files, or add it to the Library. You can also define tags that are local to a specific Custom Control, these tags will be exported/imported along with the control.
It's all in the link below!