Ability to add watchers during issue creation

Original request description:

As a Project Manager, I want to make sure that respective team members (including me) are informed about new issue creation and depending on an issue type are automatically added as watchers. I want this action to become inseparable from issue creation so that the original issue reporter does not have to inform anyone about issue creation manually. I want to be able to control the watchers' list and nominate the users.

Workaround

Workaround using Automation. Please keep in mind your Automation service limits when using.

1. Create a new custom field of type User Picker (multiple users) and call it something like Add to Watchers List
 
2. Add the new custom field to your issue's Create screen
3. For the next step you will need your new custom field's ID - you can find this by going to https://<your site name>.atlassian.net/rest/api/3/field, which returns JSON data of all your custom fields and their IDs.
Another way to find your custom field's ID is to go to Settings > Issues > Custom Fields and search for the new custom field you created. Click the three dots [...] next to the field and select Contexts and Default Value. The URL you are taken to will have the field ID in the URL. In the following example, the ID is 10030

https://<your site name>.atlassian.net/secure/admin/ConfigureCustomField!default.jspa?customFieldId=10127

4. Create an Automation rule like so:

5. The smart value in the Add Watchers action should be entered like so:

{{customfield_<insert ID from step 3>}}

Here's how mine looks:

6. Now on the issue create screen I can select multiple users from the Add to Watchers List, and the automation rule will automatically add them as watchers to the issue.