Press Trim clip on a layer in the plugin. The clip opens with a strip of its frames under it: drag the marked part or its edges, use Start here and End here while it plays, or type the times. Each layer keeps its own cut, so the same clip on three frames can play three different moments in one batch. The row’s thumb shows the picture the part starts on. A part shorter than the export repeats; Whole clip undoes the trim.
Try it on your own frame
Free to try, no account. Or watch the plugin work in the browser first.