Form conversion: Automation/Automate/Customization Buttons Add/Edit Button

[GilbertCherrie]

Splitting this issue: #6910 into 2 issues (1 for button and 1 for button groups).

[miq-bot]

This issue has been automatically marked as stale because it has not been updated for at least 3 months.

If you can still reproduce this issue on the current release or on master, please reply with all of the information you have about it in order to keep the issue open.

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