When formatting any SQL code that contains tab spacing, the Formatter converts the tabs to single spaces. I have Formatter Options set to Insert Tabs but the same behavior occurs.
Select From Dual; (This contains 3 tabs between the two ticks)
After clicking the Formatter button:
SELECT FROM DUAL; (All the space between the ticks are now single spaces instead of tabs)
Waiting for fix to be released in a future version of SQL Navigator.