If I understand the question, you're asking if there is a way to switch a group of layers on/off regardless of what other layers are visible/invisible (current layer combo)?
If this only happens for a couple of layer combinations, I'd probably just create new combinations. But if you need to turn this group of layers on/off at any time, there is a way although it will not be a one-step name thing, but a 5 step one after things are set up.
In the Layer Settings dialog, you want to multi-select the layers that you want to turn on-off and then click the eyeball. You'll change the visibility of all of the selected layers.
Doing the multi-select would be tedious... except the Layers dialog has an option to Filter-by-extension, or to sort the layers list. If sorting with your standard names does not help (no common prefix), then simply add an extension to the layers that you want to deal with as a group.
Example:
A-Walls-Exterior becomes A-Walls-Exterior.MP (MP = masterplan, e.g.)
S-Landscaping becomes S-Landscaping.MP
and so forth
Steps in the future to turn a group of layers with the same extension on/off:
1 Ctrl-L/Cmd-L to open Layer Settings
2 Select any one of the layers with the desired extension "MP"
3 Click the Filter button and choose Filter by Extension
(Now ONLY the layers with MP are visisble)
4 Select all of the visible layers and click the eyeball to turn on or off
5 OK out of the dialog
Obviously this method is only worthwhile if there are a lot of layers as you suggest in your post.
http://helpcenter.graphisoft.com/guides/archicad-19-int-reference-guide/user-interface-reference-2/d...
Attached is a screenshot of the Layer Settings dialog using the starter BIM6x template which uses extensions to group layers.
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