GDquest Offers a Quick Tip That Will Allow You To Change All Sequence Editor Strips in One Go
Blender has a handy keystroke that lets you alter most properties on multiple objects all at once. If you hit Alt-Enter rather than just the enter key, you can propagate new attribute settings across a selection of many objects. Interestingly, this also works in the Sequence Editor, as shown by GDquest.
In Blender’s sequence editor, selecting multiple strips will select them, but only the last one chosen will see an attribute editor change. You can right click to copy the new values across the selection, but it is also possible to use the Alt-Enter keystroke here. That will allow you to quickly alter the values for properties across many strips in Blender’s Editor. Nice tip!