camptocamp/c2cgeoportal — pull request #753 by ochriste (2013-11-06 10:31:15+00:00)
Title: add the possibility to link one or more detached base layer to a normal ...

...base layer so more than one base layer can be show or hidden at once (this also works with the layer linked to the opacity slider)

related to https://github.com/camptocamp/cgxp/pull/606