Graph Builder - optimized way to adjust the settings

[hogi]

☑ cool new feature
☑ could help many users!

☐ removes a „bug“

☐ nice to have

☐ nobody needs it

What inspired this wish list request? 

Adjusting the colors/markers/... in Graph Builder via the right click submenu takes a lot of time.

What is the improvement you would like to see? 

Please provide an alternative way to control and adjust the line/marker/color/... settings, e.g. like in this video:

Why is this idea important? 

Not "important" - but a substantial improvement of Graph Builder.

other wishes from