Update Assembly

Setup Manage Assemblies Update             Shared Dialog Box
Re-reads an assembly file, in case you modified the file by an alternative process. For example, if you edit in a text editor an assembly file stored in the shared database, you can reflect this change in your template-based product by using the update assembly functionality.
 
For the option:
Do the following:
Assembly Name
Select the assembly you want to update. The menu lists all open assemblies.