e.g. I have created one Custom View as 'View1' which has several child custom views such as 'View1.1','View1.2'. Now i create another custom view below 'View 1' as 'View 2'. Having the ability of simply copying 'View1.1' and 'View1.2' under 'View 2' would save lot of efforts for users. Especially if you see your project having number of similar tasks being created under it repeatedly.