[Pharo-dev] pillar question

Is this the right place to ask questions about pillar ? I am trying to write documentation using pillar. I am now stuck at conditional printing and on the contrary to my previous issues I didn't find examples in other documentation written in pillar. In latex, I would do conditional printing this way: \newif \ifsol \sol true \ifsol paragraph display if sol is true \fi and depending if I put true or false in the variable sol, the paragraph is displayed or not. Then I can print two version of my document with different texts at specific parts depending on this variable. I tried multiple ways in pillar, but I can't achieve the same result. What is the right way to do conditional printing in pillar ? Thanks ! Clement