Storyline Block- please finish watching video before continue

Hello, Uyanga!

If you want to avoid using a Storyline block altogether, you could simply upload all 6 videos to the Rise lesson using multimedia video blocks. You can disable forward seeking on each video, and add a conditional continue button below each video to ensure the learner watches the entire video before moving on to the next one. 

If you want to use a Storyline block, you can disable the next button on each slide until the video completes. Then, on the final video slide, add the trigger Sam recommended above:

Action: Complete course

Status: Complete/passed

When: Media completes

Object: [Your video object]

Then all you have to do is check when publishing the file that under Properties, and next to Tracking, you have Complete course trigger selected.