Hi
"..... I created slideshow of 30 images with transitions.
I played the slideshow, recorded it with Debut, and saved it as an mp4.
I put the mp4 into Videopad where it seems to show as a single clip......"
Saving your slideshow as an mp4 has converted it into a single clip and you no longer have individual slides. For the KB effect you require separate slides.
Currently you have to do this manually per slide which, with a big slideshow is a bit tedious. All the different Pan & Zoom variations are present from the effects window but have to be used individually or the same effect chain applied applied to all selected clips option used, which is still a bit of a chore.
I have therefore suggested to NCH that they might implement a randomize option for this particular effect as seen in the transition feature. Meaning every slide (selected slides) got a random pan&zoom (including no pan & zoom.) This may get implemented shortly
Now...I've been looking at a workaround for you to get an effect to act over a number of clips.
As you can't create a sequence of separate tracks or grouped clips in the timeline -
Do this...
Put all your slides on the timeline.
Where you want an effect to go over a number of clips.....
Select and group those clips
Drag the group up to Video Track 2 and then back to the start of the track (or close the gap)
Click the "eye" at the left end of Video Track 1 to prevent it exporting.
Export the project. It will export just your selected clips.
Load the exported clip back into VP
Delete your grouped clips on Track 2
Move the cursor line to the start of the gap in Track 1 where your grouped clips were removed from
Place the new clip at the cursor. It will fill the gap.
In effect you will now have a "multiple slide" in the form of a short clip.
Add your effect to this clip.
Nat