Combing some suggestions bc they are intrinsically related. You already have Trim. If one could split files, insert a file into a song (a trimmed file would not require two selectors - instead select a spot and insert file content into that spot, add file to the beginning or end of a song. Like LEGOS. Instead of a trim menu it could be a section edit menu. All merged areas would be AI processed to make them seamless.

How can I splice more than one song togther to create a longer song, when I use extension it just creates another additional part that isnt at the end of the original song, but would work to add

Sometimes, i want to optimize song and would like to merge 2 different parts to exclude another part in the middle.

In other case, i would have liked to take part in one clip and add it to another.

So, there should be an option to merge generations. For example, I made 2 instrumental generations and I want to merge them but there isn't any options to. So therefore, I want an option to merge these generations.

I believe many users would appreciate more sophisticated editing features. Sometimes, I receive two generations (for example, extensions) that would fit well together, and I would like to merge them into a single song. The feature could automatically identify identical parts of the song and allow for rearranging of the differing sections. Additionally, it should include cutting capabilities to iron out minor issues, such as beats not matching up perfectly.

For time inputs, please provide the option to enter time codes manually via keyboard instead of solely using the mouse cursor. This functionality could also be integrated with inpainting, ensuring that the two parts merge seamlessly through a brief inpaint process. I hope my idea is clear and helpful.