Hi,
You can use detailings sketcher to create the symbol, then edit it to include text as a note. It can be any text, as long as it is enclosed between backslashes. Then it will be possible to go to the Variable Text page of Properties and edit this text 'field'. Generally, this is text that
will fit inside the symbol, a number or letter. With BOM balloons, it is something
like \rpt_index\.
> Also how do I add a symbol to a string of text.

If want to add symbol to a string use - &symbol(symbol_name), so, if you had a symbol named BALLOON2 to show a quantity as text to the right of the balloon, your syntax would be &symbol(balloon2).
Cheers!