Within Common\Data Source Registry, the Connection String text box under the vertical view\advanced settings is too small and inadequate for editing the connection string code. Were the text box area expanded the code could be read and changed more easily while editing within Common.
By expanding the width of the vertical view panel the entry can cover over 120 characters in string length on a single line and if spaces etc are included then the content will wrap in display mode. Maybe I am missing something, if I am please update / comment on the idea.
This idea was submitted based on 6.X, it's been resolved with the UI changes in 7.X