If you have them all captured it should be pretty easy.

Click on the EDIT bar, then the IMPORT MEDIA folder just to the right of the clapboard icon, in the dialog box that opens browse to the captured file and open it.

It becomes a single icon so click on that and then to the right of the MEDIA bar find 3 icons. Place your cursor over each to see what it is, the middle one is DETECT SCENES.

Click on that and follow through with what it does. I no longer work with tape but opened an old file and it did a super job of detecting scenes based on content change.

Drag 'n drop the ones you want on the timeline until you have what you want there. Then use the HELP function (or look in the manual index) to find out how to place chapter markers.

I don't know how long your tapes are or what you need to edit out of each one, but you may be setting up a pretty long project. Be prepared for a lot of work.

Good luck