You are trying to update some form template using "Easy Form Editor" in Silverlight UI, but you have noticed that some fields are appearing "grayed out" and you are not able to proceed with the needed changes.
Updates for silverlight ceased on Firefox, Chrome, Safari, etc some time back, which is why the customer experiences this issue when trying to modify form templates.
Currently only Internet Explorer is supported as it is the only browser which currently supports Silverlight totally. So the "Easy Form Editor" when using Silverlight will only works in Internet Explorer. When full migration to HTML 5 takes place, this issue will no longer occur, but currently, while using any other browser apart from IE, this issue will occur.
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