Hi and thanks.
From memory I measured carefully where the strips were to go then inserted the clips into position in the strips. I then put a dab of grease onto the clips and screws and touched them to the panels. Where there was a dab of grease on the panels I drilled a hole. To do it without drilling you would need a good quality double sided tape. If you do end up using clips, I ruined a strip using too much force pushing it on. So use caution.