Documentation
Publicon
Reference
Preferences
Formatting Options
...Specific Box Options
SubscriptBoxOptions
{...}
MultilineFunction
• MultilineFunction is an option for cells that determines if a subscript is split to the next line if it is too long to fit on one line.
• With the default setting MultilineFunction 
Automatic, a subscript may be reformatted to extend across two or more lines. The point at which the line break is applied is indicated by a 
symbol.
• With the setting MultilineFunction None, no reformatting is done.
