The script editor now has tabs. Just click the plus sign (+) or press CTRL+T to open a new tab.
Some other tab-related features:
- MMB or control+W to close tab
- RMB on tab to open containing folder
- New File menu options including “save all tabs”
eX-SI
ICE, scripting, and other tech stuff about Softimage aka XSI
eX-SI 
But does it support indenting with spaces instead of tabs? Please tell me it does!… Please!
Yes, you can turn on Insert spaces instead of tabs, and you’ll get eight spaces when you press the TAB key.
Re: The script editor now has tabs… Very nice. Can’t wait to start working with the new 2011. Now we just need some .scn tabs so we can work on multiple Scenes at once. š
Is there is a possibility to swap script editor window and history log window so that i have history log at the top of script editor like in previous versions?