The medical translation project frequently uses Magnus's wonderful "Not in the other language" tool to determine what articles that are in the "Ready to Translate" (RTT) category in English are not in the target language.
It would be helpful if beside each item in the list that is generated there was a button that said "Open in Content Translation". Than when that button is clicked it would open "Content Translation" in the target language with the English article loaded. If the person does not have the "Content Translation" tool turned on under beta features it would give a notice to turn it on or even better simple state "You need to turn on Content Translation to use this feature, click "Yes" to activate".
Here is an example of the "Not in the other language" tool for those not familiar with it https://tools.wmflabs.org/not-in-the-other-language/?lang1=en&proj1=wiki&lang2=fa&proj2=wiki&cat=RTT&depth=9&starts_with=&wdq=&pagepile=&format=html&targets=wikidata&doit=Do+it