Simplify the following text for a Grade 7 native English-speaking person.
Original: There are 5 settings for abbreviation to show unit symbols : : \* abbr = off , abbr = on , abbr = in , abbr = out & abbr = none .
Simplified: There are now 5 settings for abbreviation : : \* abbr = off , abbr = on , abbr = in , abbr = out & abbr = none .