Ask for Feedback in Rise course

Hello,

we want to get more feedback on our courses in Rise.

At the moment, we implemented a storyline block which is linked to a web page with the survey. Afterwards the learner has to click on another Storyline block to end the course. Unfortunately, we don't get a lot of feedback so I assume that the learners just scroll down and click the "end course" block.

What I want to do know is to implement a restriction by using a continue block and the completion type "Complete block Directly Above" so that the learner has to click on the feedback button before he/she is able to continue the course. 

As you can see in the picture attached, I inserted a Button Block with a link to an external web page and a continue block with a completion type. Unfortunately the completion type doesen't work and the learner doesn't need to click on the survey button to continue.

Do you have any idea how I can implement such a restriction?

Thanks in advance :)

In general, do you have any suggestion on getting more feedback from course participants?

Regards,

Dominik