A system and method are disclosed for merging manual parameters with predefined parameters. The system includes a parse module configured to receive a command string having multiple nested manual parameters and a build module configured to generate a parameter tree having manual parameter nodes and predefined parameter nodes. The system may also include a search module configured to compare manual parameter nodes to predefined parameter nodes to identify matching parameter contexts, and a command module configured to generate a command string. The method includes receiving a command string having multiple nested manual parameters, identifying manual parameters within the command string, and generating a parameter tree having manual parameter nodes and predefined parameter nodes. The method also includes comparing manual parameter nodes to predefined parameter nodes to identify parameter nodes having a matching parameter context, and generating a command string.