I think there is some misunderstanding. It is not true - when "Automatic" is checked. Meaning: When "Automatic" is checked - a PlugIn containing leveled lists needs not to show up in the wrye bash window - in order to get its leveled lists into the bashed patch. Sorry for Google-English. And... its late For Example: My "SkyRe Light Weaponry Fillout" .... or so..... :-) has no bash tags.
As Darkside assumed: Original Skyrim version of SRO. You did write of an update. Would be needed so the SSE version can be used with Original Skyrim? I used _patch_. Sorry, English is not my native tongue.