I used automatical scene detection during importing video and now there are too many scenes. Is there any way to unite several of them into one long scene before finishing movie? Because I found only how to cut a scene.
I presume that Video Easy work the same way as Movie Edit Pro. The video object is simply cut at scene changes.
There is no need to unite the scenes into 1 object. Just leave them as they are. There is no impact unless you want some effects applied to all objects.
If you didn't cut out any scenes in the middle and you just want one object, like the original, then delete the scenes to the right of the first one and drag the right side of the first object to the right. Everything will be there. A cut object does not cut the original video, it is simply an instruction in the project, so a clip that is cut or trimmed, say on each side, is still the original clip - you can drag the left side to the left and the right side to the right up until the beginning or ending of the original clip.
Make sure that you don't have any gaps on the timeline between objects. If you cut out a scene, then you may have a gap and you have to drag all of the objects that are to the right towards the left to close the gap. There are easy ways to do this, but I don't know the limitations of Video Easy. (I would never buy something like that - too many limitations.) Normally when deleting an object, holding down Ctrl and pressing the delete key closes up the gap. There may also be different mouse modes that allow you to easily select all objects to the right of the selected object.