It would be cool and very helpful to add the following feature to the "poly length" - tool :
The feature should show relative measurements like in the example below.
So you have always a reference to the starting point.
The carpenter use the workflow with this Chain dimensioning very often when they work with a measuring tape p.e. to mark their different measurement points on the beams .
So the precision is much higher than adding individual dimensions.
Greetings
Johannes Strotbek