you could in the outliner window select all geometry but the "mother component" you want to manipulate, right click it and choose "Hide"
after manipulating the component, select all the hidden geometry and "unhide" it again. it is of course a bit laborious. but at least it is already possible.
but I would love some improvements of the organisation of components too. for example that you can hide nestet components (created within the model) in the components window - you know, some kind of tree structure
