Change style specifically (not globally)

[Dor1]

I have a heading which has its own style defined in “Style and Formatting”.

All other headings are aligned to the right by default.
I wish to make a single & specific heading to be aligned to the left, without influencing other headings.

How do I accomplish this without defining a new style ?

[mikekaganski]

In case of a single-place modification, it’s OK to use direct formatting. Just use align buttons.