Feature request: Convert clip on timeline to images

Imagine this situation:
You have a 3 minute clip in which some people fight, Mortal Kombat style. You import the clip to OpenShot and start editing.
In the middle of the clip there is a one second interval where one of them should throw a fireball. Wouldn't it be great if you just could cut at the two places where the fireball should start and end flying, right click the newly created clip and choose "Convert To Clip"? I have tested converting a 3 minute clip, and it took a very long time. Also that gives you all frames, not just the ones you want.

Patch below.
The patch works like following:
Adds a "Convert To Image Sequence" option when right-clicking a clip on the timeline.
Let's say the clips name is MORTALKOMBAT.
If clicked: Creates a folder with the name MORTALKOMBAT in the same folder as the video and then creates a folder in the MORTALKOMBAT folder with the name MORTALKOMBAT_1 (or _2 if taken, or _3 if taken ...) and places the frames there. If videos are converted to images in the old way (the whole video), they end up in the MORTALKOMBAT folder as before.

The reason I put MORTALKOMBAT_1 in the MORTALKOMBAT and not in the clip folder is because someone could then create a clip with the name MORTALKOMBAT_1.avi, convert the whole video and then overwrite frames from another clip.

I hope everything is clear.