I am not sure that I understand your question, but if you send us your Skyline document we might be able to figure it out.
In Skyline you can use the menu item:
File > Share
to create a .zip file containing your Skyline document and supporting files including extracted chromatograms.
If that .zip file is less than 50MB you can attach it to this support request. Otherwise, you can upload it here:
It sounds like you are saying that you are clicking somewhere in Skyline and renaming a precursor, and the precursor is disappearing. Can you give us more detail about what exactly you are doing?
When you change the name of a molecule in Skyline, it will often lose its chromatogram data if you have already extracted chromatograms for it. This is because the chromatograms are stored in the .skyd file, and the name is usually part of how Skyline figures out which chromatogram in the .skyd file belongs to which molecule in the document. If you rename any of your molecules you should usually tell Skyline to extract chromatograms again by going to:
Edit > Manage Results > Reimport
If your question has to do with chromatograms disappearing, you should send us one of your raw files in addition to your .sky.zip.