I guess I don’t really understand the issue. You say that placed 25 objects in exactly the same place only to realize that 20 of them are NOT at the same place?
Do you mean that all 25 objects (layers?) are in the correct position in the canvas, but most of those layers start at the wrong point in time? Or are most of them in the wrong position in the canvas?
Either way, there are ways to apply changes to numerous layers at once. If you need to adjust the start time for a bunch of layers at once, place the playhead in the timeline where you want the layers to go and then SHIFT or CMD select the layers you want to move in the layers pane. Then you can hit I to trim the layers’ IN points to the new time, or else SHIFT+[ (left bracket) to move the layers’ IN point to that time.
If you need to put a bunch of layers at the same position, you can SHIFT or CMD select the layers and then type in the position values in the properties tab. Or you can place one layer, and then click and drag the position parameter and drop it onto each layer, and that will copy the position of one layer to the position of another.
Andy
https://www.timesavertutorials.com