Roll Templates + API command buttons

I am trying to define an  API Command Button as a  property in a roll template , but am not having any luck -- that is, the template rolls but the property containing the Button is missing. Is there some trick to finagle this, or is it just not possible? Ex: {{Button=[Button](!
%{selected|Button} ) }}

This might help Glenn API command button usage in macros and AFAIK, you can't have a carriage return inside of a roll template. Update: I stand corrected.  Cool. Thanks Silvyre.

Try this: {{Button=[Button](!
%{selected|Button})}}

Eureka! That works! +9000 After some more fiddling around with the  HTML entities (specifically, replacing the button's pipe | with 124 and nesting the ampersand in the closing 125), I even got it to work inside a roll query. Here's the example for those interested: &{template:default} ?{Which Button?|Effect 1, {{Effect 1=[Apply Effect 1](!
%{selected|ApplyEffect1})}}|Effect 2, {{Effect 2=[Apply Effect 2](!
%{selected|ApplyEffect2})}}}

Nice. :)