The NEC shall initially comprise the Elected Officers (the Party Leader, Treasurer, Campaigns Manager, Data Controller and Nominating Officer) together with members selected in accordance with rules to be made by the NEC from time to time.
The NEC shall be comprised of the Elected Officers (the Party Leader, Treasurer, Campaigns Manager, Data Controller and Nominating Officer) with full voting rights.
insert after above
Additional members may be appointed in a non-voting capacity to advise the NEC. Advisors appointed in this way have none of the rights of an NEC elected officer. These advisors may be removed by the NEC at any time. For the purposes of triggering a vote of no confidence these advisors are to be considered elected officials and non-voting members of the NEC.
This clarifies that the NEC can appoint anyone to come in and help them, but that doesn't make these people full voting officers - and removes the worrying line allowing 'rules to be made by the NEC from time to time' for appointing what could be regarded as elected officers. This also makes those appointed into a non-voting capacity answerable to the members via vonc (though NEC can remove them without needing a vonc).
This second clause becomes 5.2 so existing 5.2 and 5.3 get numerically incremented.