Question: How to use Set Edge Length while egdes share vertices?

Contests and Challenges

Hello Community,

I've been looking around for ways of accurately model things (hard surface modelling etc), using numerical values. I found this addon "Set Edges Length" wich enables you to set the lenght for the selected edge(s). You can set the length of several edges, but it doesn't work when they share vetices. Is there a way to make it work with shared vertices? Like setting the lenghts of all these edges along a curve (to 1.25 for example)?

https://imgur.com/eJCuYka

Also, is there a way to set the amount of edges (incl lenghts) when Curve -> Alt+C? Or does this require an addon? 

Thanks for reading!