Does exists App Name variable

[PapyRef]

Hi all,

Does exist NLog Application/Assembly Name variable ?

I found the following solution:
  <variable name="appName" value="MyApplicationName"/>
  <variable name="logDirectory" value="${specialfolder:dir=${appName}/logs:folder=CommonDocuments}"/>

Is it possible to have
  <variable name="logDirectory" value="${specialfolder:dir=${<b>NLogAppName ?}/logs:folder=CommonDocuments}"/>

such as NLogAppName = Project Assembly Name ?

Thank you for your help