This is a plugin for showing a split view of a document in Linux Mint's pluma text editor. It is a port of Mike Doty's Gedit 2 plugin.
- Extract files to directory
~/.config/pluma/plugins
- Run pluma text editor
- In pluma main menu go to: Edit -> Preferences
- In Preferences dialog go to Plugins tab
- Find Split View 2 in plugin list and check it