Misoperation "TAB"

[demanik]

At allocation of several lines and TAB key pressing the allocated text is removed.

[David John Barker]

That's correct. It's normally ctrl + tab for block indent, shift + tab for block un-indent. However, when using ctrl + tab the IDE is switching tabs. I'll correct the anomaly in the next update so that ctrl+tab will block indent if text is selected in the editor, switch tabs if not.