Adding glue points on connector lines

[maitrebart]

I tried to add a glue point on a connector line but could not succeed.
In my flow chart I need to link connectors together.
That would be useful to have this feature.
Unless it exists alternative(s) that I am not aware of?

[Villeroy]

Connect 2 lines X-----X------X so there is a glue point in between the ends?

[maitrebart]

I tried that. But when I move my blocks around, I also have to move the line(s) separately. Still, I did not find any better up to now.
Thanks.

[Villeroy]

You can select more than one shape (Shift+Click) and group them together (right-click "Group"). Then you can enter the group for further editing. I just connected 3 lines at one common point. After leaving the group the 3 lines behave like a single shape.