Hi ed,

> Yes! a length snap! sorry i just know a little bit of english
> and some times I end up saying weird things... What about
> that, is that feasible?

Yup, a length snap should not be difficult to add - it will probably not by default get its own button on the bottom toolbar for enabling/disabling it though, it would probably be a setting under Options > Snaps for both enabling it and setting the snap distance.

I've added it to my todo list for things to add in to v3.

For others who are reading this - you can already make a line a specific distance by using distance constraint which you activate by just typing in a number and pushing enter. The "length snap" being discussed here would be for allowing different lengths instead of just one length but making the length of the line go in sort of "chunk" like steps as you move the mouse.

- Michael