文档库中多个范围内的自定义SharePoint功能 - 显示为重复项

I have a custom feature which is an Edit Control Block (ECB) action in a document library that gets deployed as a solution package (WSP). When you pull down the dropdown next to a file, you see the feature and when the ECB action is selected, the user is redirected to a custom application page.I have a custom feature which is an Edit Contro