Hello.
Inventor Environment: .iam or .ipt
It would be great if you can copy a subset of the parameters contained within a part/assembly and then paste into another part. There are cases where parts/assemblies are very similar and the same parameters get retyped into the new document. I could see a right click on the "User Parameters" header opening a context menu with the option to copy. Maybe this could pull up a form with the yellow circles with pluses to select the ones you would like to copy. Then maybe a destination could be chosen from this form, or the data can be retained in the clipboard and a paste can be done from the destination file's parameter window.
This would be pretty sharp.
Rafael