Name mapping

Hi,

I am trying to add an object to name mapping. I am using the latest version of chrome and my friend is using the same as well. We both name map the same object but it generates different script for each of us. Is that expected? I'd expected it to be the exact same. The object I am trying to add is the Save As window. For me it gets mapped as browser.Item. For my friend it is saved as browser.dlgSaveAs. How can I solve it? I tried manually but it said browser.item is already mapped. Can I just change the alias for item to dlgSaveAs? Please help.

TIA

aa