Ability to specify and bulk edit 'run as user' in integrations

We have a small team of people who can create integrations. The integration always sets the user who created the integration as the 'run as' user. When we have staff turnover, we have to manually change the integration 'run as' user. There could be hundreds per user.

It would be great if we could set the 'run as' user at the time of creating the integration to use a generic service account. Having done so, it would be great to be able to bulk edit integrations to make changes this or any other generic setting we need to change.