These statements allow you to preserve and restore track variables. The most common usage is to preserve track variables before calling another action which might change them. The track variables are saved to a container.
The supplied identifier is case insensitive and leading and trailing spaces are ignored. The identifier may contain any of the escape sequences described in Escape Sequences. The created container will be named:
saved variables (identifier)
When saving, you specify which track variables you wish to be saved.
When restoring you have two optional settings: