This is a proof of concept example of what a Moodle 4.0 Question bank plugins can be like. It allows multiple questions to be selected and a chance to update the text within all selected questions.
To install it from the root of a moodle installation
git clone git@github.com:marcusgreen/moodle-question_bank_bulkedit.git question/bank/bulkedit
It is purely to illustrate the concept of question bank plugins for the purpose of information and inspiration, it may not do what it claims to do and it might do things you don't expect it to.
Developer documentation on Moodle 4.X will be located at https://moodledev.io/docs/apis/plugintypes/qbank
Do not install on a live site or put anywhere near data that matters to you.
If you would like further work along these lines contact Moodle partner Catalyst EU https://www.catalyst-eu.net/contact-us/brighton