Pitch bending in FL using the standard pitch knob might be fairly unnatural-sounding depending on the plugin (sometimes it feels "stepladder"), but if you want to do it that way, there should be a "2" by default next to the pitch knob (it says "RANGE" right under the "2"). Then just increase that "2" to a "12" to allow a larger pitch bend range and thus one that is more noticeable.
If you mean in the piano roll, it's portamento, and it only works for native plugins like 3xOsc and plugins made for FL's piano roll. You can go into the VST wrapper, click the wrench icon, and enable "Mono". That should allow you to "bend" from one pitch to the next (portamento) in the piano roll for native plugins.
Or, you could double click one of two overlapping notes in the piano roll for a native plugin and enable "Slide" (the right triangle) to slide from one note to another.
TheChargingRhino reacted to timaeus222 in FL Studio 101 - 90+ Minute Video Course
