Line suppression ..
[Ctrl][Y]
If you set it in the [Configuration] Tabbed Dialog, you can delete a whole line at once. I added this feature because it was requested by a user. This is a dangerous feature that you should never use. Editing of Mono-Files Source is a particular thing, with particular requirements, the first one being full security and heavy prevention from undesired user actions. [Ctrl][Y] is incompatible with this requirement.
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