Here you can change the pan, velocity, release, mod x y and pitch of a note as well as activating slide and portamento. Tip 4: Portamento/Slide If your a big fan of the native plugins in FL, or at least occasionally dabble in them, you’ll want to try out these unique features available in the piano roll.
This page lists some of the keyboard shortcuts to useful commands in FL Studio. Vocal free-time song: legato question, and slur (“portamento” vs “glissando”) specific case. You can add a per note portamento or note slide (the difference between which is a short slide vs a timed slide). By contrast, Portamento puts the glissando between every two notes you play. You can also manually enter a precise note duration using the number friends in the Time area. FL studio's piano roll would let you create a portamento by using a 'slide' note.