edit custom requirements
Once you create a custom requirement, you can then not edit the custom requirement under the Create Deployment Wizard type. We should have an edit button to edit the custom requirement you created.
Mitch Tamsett commented
You can edit these already, under Software Library > Application Management > Global conditions. This is actually where the custom requirements is created. Note, that you are restricted on editing any conditions that are currently in use. You can only edit them when they are not in use, for obvious reasons.