https://github.com/laktak/extrakto
(similar to copycat) and
https://github.com/laktak/tome
Steps:
1. have two panes open
2. In pane 0, have your cursor or a line or multiple lines of code
3. :VtrSendLinesToRunner
4. In pane 1, the lines are performed
https://github.com/laktak/extrakto
(similar to copycat) and
https://github.com/laktak/tome