We are running Connections 6.0 CR5 with the Mail / calendar Plugin.
The plugin is officially not supported.
One issue we ran into is that the wiki page looses its header as soon as we create or edit a page.
The connections menu would appear below the page. Only a page refresh would bring the menu back to the top.
Analyzing the page source revealed, that the lotusMain was placed before the banner.
It’s in the file shared/provision/webresources/com.ibm.lconn.wikis.web.resources_[XY].jar
edit the file resources\scenes.js at line 1792 replace
Repack everything to the same filename com.ibm.lconn.wikis.web.resources_[XY].jar and use it to replace the one in the webresources.
As stated before. use at your own risk.