Now I am using the Save-As menu item.
For example, Original name is MyApp.pband I Save-As "MyApp.bak.pb"
But it is making trouble, because the current source code becomes MyApp.bak.pb
I need to close the current source code naming MyApp.bak.pb and then re-open my original source code MyApp.pb
It would be NICER if there is an additional menu item as something like "Save-To-New-File-But-Remain-As-Original-File" or "Export-To"
But it would be BEST if the future IDE is having a periodical auto-backup function, say, every 5 minutes
