title: Is there no way to specify a relative path in PyCharm's Sphinx "Run Configuration"?
body: <p>I'm setting up documentation tasks for a number of projects a manage using PyCharm, but an running into an obstacle. It appears that there is no way to specify a <em>relative</em> path in the "configuration" dialog for the task. For example, I can't to this:</p>
  
  <p><img src="https://i.stack.imgur.com/AP925.png" alt="enter image description here"></p>
  
  <p>Can that be correct? If so, it means I need to create a different "Run Configuration" for each project, even though they all do exactly the same thing. Is there a way around this — by placing the documentation files in some default subdirectory of my projects, or setting some other option of variable?</p>