[Qgis-developer] QgsLayerTreeViewMenuProvider and default values

[Richard Duivenvoorde]

Hi,

trying to implement a 'refresh data' menu item for a layer, I followed 
this blog post to create one:

http://www.lutraconsulting.co.uk/blog/2015/01/30/qgis-layer-tree-api-part-3/

but using it removes all default options, AND it is created for ALL 
layers.

Q1: is there an option to only add this menu item to certain (1) layers?

Q2: is it possible to add the new 'refresh' option on top of all normal 
default menu items?

Q3: looking at the possibility to add a 'Transparency slider' in the 
layertree (see layer props bottom item): how difficult is it to add a 
'refresh data' button (with custom refresh data code) in the layer tree

Regards,

Richard Duivenvoorde