Hello there ! Well this one sounds easy, but...  Well, that's what I thought too. I must have really missed something because I just can't seem to get it right...  On paper, this kind of scheme is supposed to work, but in reality, nothing works. I've been looking at the problem from every angle; there must be some syntax I'm missing. I even tried replacing the button with a text input.     <  rolltemplate     class  =  "sheet-rolltemplate-shey"   >
   <  div     class  =  "sheet-extra-button"  >[Show Description](~show-description)</  div  >   </  rolltemplate  >
  +   <  button     type  =  "roll"     class  =  "sheet-button-description"     name  =  "roll_  show-description  "     value  =  "  &{template:shey}   {{description=randomtexthere}}"  ></  button  >      The closet I was it was with that kind of things.   <  rolltemplate     class  =  "sheet-rolltemplate-shey"  >
  <  div     class  =  "sheet-extra-button"  >[Show Description](~@{Efoph Fleaug|reveal-desc})</  div   >
   </  rolltemplate  >  + < input   type = "text"   class = "sheet-hidden"   name = "attr_reveal-desc"   value = "&{template:shey}     {{description=randomtexthere}}  "  />     But even with that synthax, it display the result but also an error :     No ability was found for %{@{Efoph Fleaug|reveal-desc}  .