Add Automation Actions that can edit/change issues

At the moment there are three actions in utomation: transition issue, add comment and alert user. I'd like to suggest adding actions that can edit the issue. It would be great to have an action that could edit the request type, add a tag or system, add watchers, etc.

Use case:
We are currently in the process of adopting Service Desk for inhouse use (customers are coworkers, IT department of the company) and while the customer portal will work nicely for the more complicated issues but we expect the majority of tickets will come in via email. To reduce administration work (ie every ticket via email would have to be given a priority, systems/components added, etc) I'd want to do all this with automation.

I'm aware there is the possibility of adding custom actions by developing a plugin for automation, but I think editing some properties of issues should be a default option.