Dear All,
I have this situation in lizmap.
In case of group layer, in lizmap if I activate the group I don’t visualize the layer included and i have to switch on any layer one by one.
Is ti possible to change this setting so if I activate (flag) the group any layer included is activated (flagged)?
Thanks
P
Side question, why not activating all layers inside already ?
The behavior was set to do the same as in QGIS Desktop related to groups in the legend.
Did you try “double-click on a group”, it propagates the event to children.
Hi P
this can be done by double-clicking on the layer group.
But does not work with cathegorised layers (bug?)
Greetings
Günter
I think it has not been developed 
Thank you.
I find it best to work with the QGIS map themes. I have mostly deactivated the checkboxes for the layergroups.
Should I make a corresponding feature request/bug on Github?
Users who work a lot with cathegorized layers have already reported this to me as a bug. At least it would be a useful extension.