Similar to the attached screenshots.
Add folders, files, shortcuts, etc. that you need for both new and update
installs to the "Always Install" Feature. Add new install specific stuff to
the "New Install Only" Feature and update specific stuff to the "Update
Install Only" Feature.
The "New Install Only" Feature is part of the "New Install" Setup Type. The
"Update Install Only" Feature is part of the "Update Install".
At runtime, you can then decide whether this is a new install or an update.
If it is a new install, set the active Setup Type to "New Install" and it
will install all objects from the "Always Install" and the "New Install
Only" Features.
Set Active Setup Type to "New Install"
If it is an update, set the active Setup Type to "Update Install" and it
will install all objects from the "Always Install" and the "Update Install
Only" Features.
Set Active Setup Type to "Update Install"
Friedrich