Interactive display mode (vnmr concept)
From NMR Wiki
Display of spectra in vnmr is modal. That means that depending on which mode is current
In the interactive mode user can provide some input with the mouse (e.g. adjusting phase, spectrum display scale, etc.)
An easy way to switch into the interactive display mode for 1D spectra is to type ds
Another way is to click through "Main Menu"->"Display Menu"->"Interactive" of the command line/button bar.