Hmm. Each time you edit your layer via the wizard, you'll lose the "set module_tags_opts_count_type=..." line, but you won't lose any of your other customizations. (The wizard stuff is just a frontend to the layers; anything you set in a wizard will be set in the layer).
So it may be easier to put off putting in the "set module_tags_opts_count_type..." until the very end.
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So it may be easier to put off putting in the "set module_tags_opts_count_type..." until the very end.