If my users attempt to copy a hierarchy from one sheet to another, they loose the hierarchy information.
Using copy rows is not an option - because it messes up the formulas that are built into other cells in the sheet.
Copying the sheet is also not an option. We use Control Center, when we start a new project, CC spins up a package of about 20 different project sheets, with multiple cross links and roll up reporting to PMO sub teams.
I have users that have complex project plans, and sometimes a section of them are repeated from project to project, and they would like to copy them over, but when they do, they have to spend time messing around to get the hierarchy back.