Video Runway Aleph

In order to improve the user experience, I have encountered a problem that I really don't know how to solve.

When you generate a video with any model, whether it be Firefly, Luma, Pika, etc., it often happens that the videos are longer than 5 seconds, even if it is only 5.001 seconds longer. The Runway Aleph model does not accept them because they are longer than 5 seconds. This is annoying for the user because they have to download the video, go to a video editor, cut it, upload it back to the board, and repeat the whole process.
I do not know if it is possible to leave videos at 6 seconds when using Runway Aleph, which would solve the problem.

That's all! Thank you!