No, but ordinary skill with that software does not establish L-1B either. Identify the special or advanced knowledge of the company’s products, processes or procedures that the actual assignment requires.
Explain the company-specific application
Use a real integration or testing problem to show what the employee knows beyond a general user’s ability. Describe how that knowledge was acquired and how it compares with relevant knowledge in the organization or industry. Avoid unsupported claims that nobody else could learn it. The qualifying foreign employment year and corporate relationship still need their own evidence; a technical explanation cannot replace them.
Begin by identifying the organization-specific subject matter: a protected process, unusual configuration method, manufacturing sequence, implementation technique, research program, or internally developed service model. Process manuals and recipes kept internally, engineering change logs, quality-control procedures, any patent or trade-secret policy, and training records showing the method is taught inside the company. Identify the proprietary system, internal methodology, unusual product configuration, or advanced process the worker understands, then name the records that demonstrate it: training histories, project logs, process manuals, restricted access records, and supervisor declarations.