hello Alexandre Cayer,

I am really sorry for the delay of this reply as it is a weekend for us here.
Thanks for reporting, we will update the Easysocial module position as soon as possible.
Because all the position have "unity" already no longer use in latest version of Easysocial.

If you would like to check which position is available in Easysocial page, you can enable the template position from your backend > extension > template manager > option > template position - YES

Then go to your Easysocial page -> e.g. http://yourDomainName.com/index.php/community?tp=1

hope this help.