Created attachment 90919 [details]
ODG file with demonstration of the problem with Straight Connectors

As far I can understand - Arrows from Lines and Arrows sub-panel of Drawing toolbar can:
1. be straight (horizontal or vertical = rotated by 45/90/135/180/225/270/315/360) if I press <Shift> key;
2. snap to grid.


I use LibreOffice Draw for diagram creating. So I use elements from Drawing sub-panels Connectors, Glue Points and Basic Shapes.
It was a surprise for me, that Straight Connectors do not snap to grid and do not react on <Shift> key. It is very difficult do connect Connector line to some object without these two options if one of line ends is not connected.
The example is in attachment.

It demonstrates, that:
1. «Straight Connector ends with Arrow» line does not snap to grid and does not react to <Shift> key,  so it is difficult to keep it horizontal or vertical.
2. «Line Ends with Arrow» line snaps to grid and react to <Shift> key, but it does not connect to another object (does not have glue-point, it is not a connector).

Please, if it possible, allow Connector line to act as other lines (add snap to grid and a reaction on <Shift> key). Without this changes it will be very difficult to use LO Draw as diagram editor for real life tasks.

I see this behaviour on LO Version: 4.1.3.2 Build ID: 410m0(Build:2) and LO 3.5.7.2 Build ID: 350m1(Build:2). May be other versions are affected too.