Fairlight: Adjustable range selection volume keyframes

Something that's new in Fairlight is the ability to range select a portion of a clip, and then with the mouse lower the volume of just that portion of the clip. This creates keyframes on either end of the range selection, a frame apart. This is handy for very harsh volume changes, but is effectively the same as making edits and lowering the volume of that clip as the keyframes are only a frame a part. If you wanted to make it a more gradual change, you'd have to then click and drag those keyframes apart, which is also a bit of a hassle because Fairlight has trouble with Shift + dragging keyframes to keep constant volume.

I propose the ability to adjust the "handle" length of those auto-generated keyframes so you can make more gradual volume changes very quickly with the range selection tool. There are two ways I could see this working, one is to have it be a setting in your system preferences, or more interestingly it could be something you do on the fly with mouse movement and a modifier key. For instance, something like holding shift while dragging clip volume up or down would interpret any horizontal mouse movement to "spread" those auto-generated keyframes apart if you have a ranged selection. Imagine being able to quickly just select a range then drag down the volume AND feather your keyframes all in one go.

This is similar to how Photoshop handles changing brush size + hardness with mouse shortcuts. While holding CTRL + ALT you can click and drag horizontally to change brush size, or vertically to change brush softness, or any combination of both. This is a REALLY useful shortcut in photoshop and I think something similar would ease a lot of pain with keyframe adjustment in Fairlight.

This would definitely be a huge time saver. One frame is too harsh of a transition. Actually it's not a transition at all, it's the same as cutting the clip and adjusting volume.