Created attachment 132079 [details]
Crossing Points feature
in LO there is no possibility to connect two lines together at a specific point, just somewhere where a glue is (and if two lines are overlapped it looks like there is one thicker line). As workaround you can create a point and connect two line to this point, but the center of the point is not aligned to the grid so it look not very well.
So a nice feature would be also to connect two lines together without adding a point between them (it should create the point it self). See attached file.