Q: How to set B-roll manually?
I cannot edit the b-roll sections manually. It is needed because I have a very long paragraph but it's actually the AI cannot detect where my sentences end. I cannot add the number of B-rolls as well. Also, I cannot redo the edit because there is no button or Ctrl+Z. The playback is somewhat lagging and it seems to improve the performance. I hope It this app can be better sooner.

RenderCut
Edited Apr 28, 2025A: For how B-rolls works manually, please check our B-rolls tutorial here:
🎥 https://www.youtube.com/watch?v=Ip7E8OWx3s4
❌ We have no undo and redo events in case of B-rolls like text edits.
🔄 Regarding playback, for fresh b-roll selection, it may take bit time as it will buffer or download B-roll from library and we are using all HD videos for B-roll. So, may be first time you may see bit buffering state in preview. (this will also depend upon internet speed, b-roll size etc)
🛠️ We will work to reduce size and may be resolution to faster preview as optional setting. But our first priority is to show users exact same preview which they will get after generating video. (No surprises after video generation)
✅ Please note that there will no such issue when you render or generate the video as we pre-load all assets before generating final output.
Your provided Youtube doesn't help. As I said I cannot set the duration. For example my first scene is 25 seconds (total 70 seconds and 5 scenes), I can only replace the b-roll for that scene. I cannot split the 25 seconds into parts. While your youtube video showed 3-5 seconds per scene. I don't know why it may be your AI failed to detect the end of the sentences from transcribing my video.
Ok, got it. For now we do not have manual control to split the B-rolls. But we are going to work on it soon so users can add/edit/delete own time span to provide more flexibility. This will be soon available.
Hey There,
We have quickly updated this feature. Please check now. You can not remove and add B-rolls slot as per your need.
Feature Delivery time after checking comment: 1.5 Hours 🔥