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# Multiple ARB_NT windows OCCURRENCE DESCRIPTION NOTES EXAMPLES WARNINGS BUGS ## OCCURRENCE
### ARB_NT/File/New window (same database)
## DESCRIPTION
### You may open multiple ARB_NT main windows. This allows you to display multiple trees next to each other to compare them. You may also display different regions of the same tree using multiple windows.
## NOTES
### When closing the first ARB_NT main window (that one with the big red 'X' button), your ARB session will terminate. Closing secondary ARB_NT windows (those with a blue 'X' button) will not terminate ARB. ### Secondary ARB_NT windows contain a reduces set of menu functions, mostly those which somehow interact with the currently displayed tree. Each windows' menus refer to their own selected tree.
## EXAMPLES
### None
## WARNINGS
### None
## BUGS
### Macro functionality is not yet completely available for secondary windows, i.e. sometimes macros refer to the first window instead.