You can add blank frames to a scene storyboard at any time and delete frames you no longer need.
Procedure
To add a frame
Go to app.filmustage.com, and then open your project.
In the top navigation bar, click Storyboards.
From the scenes list on the left, select a scene.
Do one of the following:
To add a frame at the end of the storyboard, click + New Frame below the last frame.
To insert a frame before an existing frame, click the + icon to the left of that frame's title.
A blank frame is added. You can then write a description and add camera notes to it manually.
To delete a frame
Click the trash icon at the top right of the frame you want to delete.
The frame is deleted immediately without confirmation.
Plans
Adding and deleting frames is available on all plans, including Free.