The local name is automatically composed from the full path name by replacing characters that are illegal in equations (such as spaces and carriage returns) with underscores. If you would prefer to use a different local name to refer to the full path name, the local name can be edited. Right-click on the name in the list box to edit it. Each other model element can have only one local name in this one (though the other model element might be referred to using a different local name in further other model elements expressions). For this reason, if you edit the local name, you may also need to edit the expression itself to update the corresponding references.
Use the equation dialogue box to edit the local name.
In: Contents >> Working with equations