Construction Tool help

Just wondering if anyone has any experience working with the construction tool in activity builder?

I’m looking to change some lines to be dashed, create a construction with an angle/side length that students can’t change and also import a construction (from Desmos Geometry) to an activity slide.

[Here's my activity if you want to check it out.](

I think I figured out most of my questions. I didn’t realize I could scroll down when using the select tool.

I simply locked points in the construction.

Still haven’t figured out how to import a construction into an activity slide.