The thing is that aboard ship a single requirements can’t be added without compromise elsewhere. In any case the procedures should be changed rather then a single message.
Things are done in accordance with the GM, stress requirements in the stability book and operational requirements such as draft and/or air draft restrictions, trim and list, fuel burn requirements.
Some are non-negotiable, for example min GM and max stress but there are also often sharp limits to how much room there is to play around with tanks levels.
An example is the conflicting requirements to keep ballast tanks either empty or pressed up along with the requirement to do ballast exchange.