I chose the "Nuvo Iron" for my shading system, which also works very well. Unfortunately, the sliders and holders are not available separately. However, I needed 2 more and here is the result.

I left out the hook for better printability and modified the area slightly. To use the printed parts in the original sliders, the noses can be cut off.

Have fun with the parts.

Printed in ASA, but I think PETG or ABS will also work